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IHSN December 2006, <strong>Mon</strong>th Section Index<br />

ISSN 1543-6039 Acrobat file name: 0612mon<br />

The following URL to the IHSN portal is below and pages 1 to 4 of that<br />

portal will provide links to the sections of the current and two prior<br />

months in Acrobat format as well as semi-permanent IHSN references<br />

such as <strong>Shell</strong>ing in Hawaii, <strong>Shell</strong> descriptions, <strong>Shell</strong> animal descriptions<br />

and links to other sites.<br />

http://home.att.net/~w.thorsson/index.html<br />

Please enter it as one of your bookmarks or favorites.<br />

<strong>Hawaiian</strong> Malacological Society Christmas Dinner Meeting 2<br />

===============================<br />

<strong>Shell</strong>ing Events (Conventions, shell shows, auctions, etc.) 5<br />

===============================<br />

Recent Finds by Sid Sneidar 8<br />

Grunge Finds by Sid Sneidar 11<br />

Recent Finds by David Watts 12<br />

Conus tigris diet by Wesley Thorsson 14<br />

===============================<br />

COA (Conchologists of America) List Server information 16<br />

Return to IHSN portal for links to other sections<br />

<strong>Internet</strong> <strong>Hawaiian</strong> <strong>Shell</strong> <strong>News</strong> December 2006 <strong>Mon</strong>th Section page 1


Pre-arrival<br />

Note: The usual staring time of 7:00 PM has been<br />

changed to 6:00 PM. Take this into your finely<br />

honed departure time from home. Allow for traffic<br />

delays: Somewhere City/County/State are<br />

probably repairing the roads and tunnels you will<br />

use.<br />

Reservations: Please make reservations by<br />

Saturday, 25 November 2006 to Dave Watts at<br />

674-9151 or Email wattsd001@hawaii.rr.com and<br />

mail the form included at the end of this notice or<br />

its equivalent with payment of $25.00 per person<br />

For those who are date impaired<br />

You will notice that by the time you receive and<br />

read this, you are too late to meet the deadline for<br />

mailing your intent to attend this festive occasion.<br />

However, you can pick up your phone now and<br />

call Dave Watts (974-9151) as he may be able to<br />

include you under the number of attendees he<br />

furnished the hotel. But do send in the form in the<br />

November iHMS Bulletin ssue with payment.<br />

Gift exchange:<br />

Prepare a gift-wrapped, shell-related gift<br />

for each member of your party who desires to<br />

receive a magnificent gift from another member.<br />

Christmas Dinner Meeting<br />

Wednesday, 6 December 2006<br />

At 6:30 PM<br />

Hale Koa Hotel<br />

2055 Kalia Road, Honolulu, Hawaii<br />

Laulima Rooms 1&2<br />

Events:<br />

Silent auction donations:<br />

All donations of shells or shell-related<br />

material or books will be cheerfully accepted by<br />

Dave Watts or any HMS officer, preferably prior<br />

to the dinner, but at the dinner if you come upon<br />

your donation late.<br />

Arrival<br />

The Hale Koa Hotel is probably the best<br />

decorated establishment in Honolulu for the<br />

Christmas season. Attendance sets a precedent for<br />

the season. Enjoy the decorations as you arrive,<br />

watch the activities and make your way to the<br />

second floor. Master of Ceremonies and Event<br />

Arranger is, as in the past, David Watts assisted by<br />

Jody Watts. Parking is available at the hotel<br />

garage across the street with a $2.00 fee with<br />

prevalidation received at the dinner.<br />

Pre-Dinner<br />

Check in with David or Jody Watts and<br />

present your shell-related gifts by placing them<br />

under the Christmas tree. Receive tickets for the<br />

gift exchange. Enjoy an opportunity to chat with<br />

and extend felicitations for the season to fellow<br />

members while enjoying drinks of your choice<br />

(pay-as-you-go bar), examining the outstanding<br />

decorations of the room and the wonders being<br />

presented on the silent auction table. Bid on items<br />

<strong>Internet</strong> <strong>Hawaiian</strong> <strong>Shell</strong> <strong>News</strong> December 2006 <strong>Mon</strong>th Section page 2


with great abandon to support the HMS<br />

educational programs<br />

Dinner<br />

Menu: Delectable assortment of heavy<br />

pupus served buffet style, usually including: Fresh<br />

market vegetables with creamy herb dip, seasonal<br />

tropical fruit trays, selection of international and<br />

domestic cheeses with fruit, sliced French bread<br />

and crackers, penne pasta with creamy wild<br />

mushroom sauce, bowtie pasta with bolognese<br />

meat sauce, shrimp, dim sum and scallop dim sum,<br />

chicken teriyaki skewers, panko breaded fried<br />

shrimp, cocktail sauce, tempura style mahi-mahi<br />

skewer with lemon garlic mayonnaise.<br />

Enjoy the company of your dinner table old<br />

friends and guests. Swap collecting stories, some<br />

of which will be reputed to be absolutely true.<br />

This meal has been enjoyed by our members at this<br />

event for many years.<br />

After Dinner<br />

One of the purposes of this meeting is to install<br />

the HMS officers and directors for 2007. Awards<br />

for outstanding work in the past years are also<br />

made. You probably know you are eligible. If not,<br />

do more in the next years. HMS operates entirely<br />

with volunteers. Its publications succeed only if<br />

you contribute.<br />

Are there still people you haven’t met?<br />

Introduce yourself. All attendees have had<br />

HMS Christmas Dinner Meeting continued<br />

interesting lives with varied experiences. Find out<br />

what you have in common: probably much more<br />

than shells.<br />

Gift exchange:<br />

When Dave calls your ticket number, it is<br />

your turn to pick up a gift at the Christmas tree.<br />

Remember good things come in small packages.<br />

But then, so do some big things. However, you<br />

don’t always get to keep your gift anyway. There<br />

are a lot of ways to encourage you to trade your<br />

gift for another.<br />

Silent <strong>Shell</strong> Auction:<br />

As a finale, the not-always-so-silent auction<br />

is closed and you can pick up those shells you have<br />

always wanted and pay for them.<br />

.<br />

Departure:<br />

Another opportunity to observe the hotel’s<br />

splendid decorations. Time to remember just<br />

where you parked your car. Validated parking in<br />

hotel parking garage, $2 fee if you remembered to<br />

get your parking ticket validated by Jody or Dave.<br />

Have a safe drive home observing the decorations<br />

by the city, hotels, stores and private homes. Some<br />

home decorations probably exceed your own.<br />

Make a promise to yourself to be more prepared<br />

for next year.<br />

<strong>Internet</strong> <strong>Hawaiian</strong> <strong>Shell</strong> <strong>News</strong> December 2006 <strong>Mon</strong>th Section page 3


HMS Christmas Dinner Meeting continued Reservations and Dues Payment<br />

Reservations Form for December HMS Meeting:<br />

Names of Persons attending:<br />

____________________________<br />

_____________________________<br />

_____________________________<br />

Prepayment attached ($25.00 each) $________________<br />

Dues Renewal Form for 2006 Dues expire on December 31.<br />

Dues year applicable 2006 2007 2008 (circle applicable years).<br />

Names : EMail Addresses<br />

__________________________________ ___________________________________<br />

Phone number<br />

___________________________________<br />

Names : EMail Addresses<br />

__________________________________ ___________________________________<br />

Phone number<br />

___________________________________<br />

Dues Payment Amount attached $ ____________________ $15.00 per person per year<br />

<strong>Internet</strong> <strong>Hawaiian</strong> <strong>Shell</strong> <strong>News</strong> December 2006 <strong>Mon</strong>th Section page 4


2006 SHELL SHOWS<br />

& RELATED EVENTS<br />

Note on format:<br />

The information on events was that presented to<br />

Donald Dan. Generally each event is in the following<br />

order: Some elements are missing as presented<br />

to Donald Dan<br />

Date of event<br />

Sponsoring organization<br />

City where event will be held<br />

Address of event<br />

Name of person to contact<br />

Address of contact<br />

Phone number of contact<br />

Fax number of contact<br />

Email for information<br />

Following information is subject to change.<br />

Please verify with individual organizations.<br />

Jan. 19-21, 2007<br />

SPACE COAST SHELL FESTIVAL<br />

Melbourne, FL<br />

The Melbourne Auditorium, 625 E. Hibiscus Blvd.<br />

& Bobbi Cordy, 385 Needle Blvd.<br />

Merritt Is., FL 32953<br />

E-mail: corshell@earthlink.net<br />

(321) 452-5736<br />

Jan. 26-28<br />

BROWARD SHELL SHOW,<br />

Pompano Beach, FL<br />

Pompano Beach Recreation Center,<br />

NE 18 th Av. & NE 6 th St.<br />

Linda Sunderland,<br />

3970 NW 39 th Street<br />

Sunrise, FL 33351<br />

E-mail: klshells@mindspring.com<br />

(954) 749-9858<br />

Coming Malacological Events<br />

Jan. 27-28<br />

NEW ZEALAND SHELL SHOW<br />

Wellington, NZ<br />

Deirdre Standish,<br />

116 Te Anau Road<br />

Hataitai, Wellington, New Zealand<br />

E-mail: deirdre.standish@clear.net.nz<br />

64 (49) 386 554<br />

Feb. 16-18<br />

SARASOTA SHELL SHOW<br />

Sarasota, FL<br />

Sarasota Municipal Auditorium,<br />

Tamiami Trail<br />

Fran Schlusemann<br />

11328 Rivers Bluff Circle<br />

Bradenton, FL 34202<br />

E-mail: hanksfran@aol.com<br />

(941) 739-0908<br />

Feb. 24-25<br />

ST. PETERSBURG SHELL SHOW,<br />

Seminole, FL<br />

Note: New Location -<br />

Seminole Recreation Center, 9100 113 th St. N.<br />

Bob & Betty Lipe<br />

348 Corey Avenue<br />

St. Pete Beach, FL 33706<br />

E-mail: blipe@tampabay.rr.com.<br />

Exhibit form available at web site: http://web.<br />

tampabay.rr.com/shellclub<br />

(727) 391-2197; FAX: 360-3668<br />

<strong>Internet</strong> <strong>Hawaiian</strong> <strong>Shell</strong> <strong>News</strong> December 2006 <strong>Mon</strong>th Section page 5


Mar. 1 - 3<br />

SANIBEL SHELL SHOW<br />

Sanibel, FL<br />

Sanibel Community Center, Periwinkle Way<br />

Marilyn Northrop, 1528 Education Court<br />

Lehigh Acres, FL 33971<br />

E-mail: mjnorthrop@worldnet.att.net<br />

(239) 694-1837<br />

Mar. 10-11<br />

TREASURE COAST SHELL CLUB SHOW<br />

Jensen Beach, FL<br />

Langford Park Field House, 2369 N.E. Dixie Highway<br />

Carole Marshall, 932 Cochran Drive,<br />

Lake Worth, Florida, 33461-5711<br />

E-mail: marshalldq.aol.com<br />

(561) 582-2148<br />

Mar. 17-18<br />

XIXéme RECONTRES<br />

INTERNATIONALES DU COQUILLAGE<br />

Paris, France<br />

Bourse de Commerce, 2 rue des Viarmes<br />

75004 Paris, France<br />

M. & D. Wantiez, 88, Rue du General Leclerc<br />

95210 Saint Gratien, France<br />

E-mail: wantiez.mada@wanadoo.fr<br />

33 (1) 34-17-00-39<br />

Mar. 15-17<br />

MARCO ISLAND SHELL CLUB SHOW<br />

XXIV,<br />

Marco Is., FL<br />

Marco Presbyterian Church, Elkcam Circle<br />

Amy Tripp, 961 Swallow Ave., #208<br />

Marco Island, FL 34145<br />

(239) 393-1770<br />

Coming Malacological Events Continued<br />

April 28<br />

BRITISH SHELL COLLECTOR'S<br />

CLUB CONVENTION,<br />

N. Romford, England<br />

North Romford Community Centre,<br />

Clockhouse Lane, Collier Row<br />

Tom Walker, 38 Redlands Road<br />

Reading, Berkshire RG1 5HD, England<br />

E-mail: tom@tmwalker.co.uk<br />

44 (118) 987-4294<br />

May 5 - 6<br />

XVII BELGIUM INTERNATIONAL SHELL<br />

SHOW,<br />

Antwerp, Belgium<br />

Schijnpoort, Schijnpoort Straat<br />

Charles Krijnen, Burgemeester Jansenstraat 10<br />

NL-5037 NC Tilburg, Nederland<br />

E-mail: bvc.shellshow@planet.nl<br />

Web site: www.bvc-gloriamaris.be/beurs_e.htm<br />

31 (13) 463 0607<br />

May 26-27<br />

SUNCOAST CONCHOLOGISTS’<br />

SHELLERS JAMBOREE<br />

Dunedin, FL<br />

Venue address to be decided -<br />

Alice <strong>Mon</strong>roe, 2648 Timbercrest Circle West<br />

Clearwater, FL 33763-1626<br />

E-mail: monroe@spjc.edu<br />

(727) 796-5115<br />

Jun. 16-17<br />

JACKSONVILLE SHELL SHOW<br />

Jacksonville, FL<br />

Morocco Shrine Temple,<br />

3800 St. Johns Bluff Road<br />

Judy Blocker, 2109 Beach Avenue<br />

Atlantic Beach, FL32233-5932<br />

(904) 246-4012<br />

<strong>Internet</strong> <strong>Hawaiian</strong> <strong>Shell</strong> <strong>News</strong> December 2006 <strong>Mon</strong>th Section page 6


Jul. 14-15<br />

KEPPEL BAY SHELL SHOW<br />

Yeppoon, Queensland, Australia<br />

Yeppoon Town Hall<br />

Jean M. Offord, 277 McDougall St.,<br />

N. Rockhampton, Qld. 4701, Australia<br />

(7) 4928-3509<br />

Jul. 15-20<br />

WORLD CONGRESS OF MALACOLOGY<br />

JOINT UNITAS &<br />

AMERICAN MALACOLOGICAL SOCIETY<br />

MEETING<br />

Antwerp, Belgium<br />

University of Antwerp, Groenenborger Laan 171,<br />

B-2020, Antwerp<br />

Dr. Thierry Backeljau<br />

E-mail: wcm@naturalsciences.be<br />

Web sites: www.ucd.ie/zoology/unitas & www.<br />

malacological.org<br />

32 (2) 627-4339<br />

Jul. 21-22<br />

TOWNSVILLE SHELL SHOW<br />

Townsville, Queensland, Australia<br />

Cutharinga Bowls Club on Harold Street, West<br />

End<br />

Glenda Rowse, 19 Farrell Street<br />

Kirwan 4814, Queensland, Australia<br />

(7) 4773-2817<br />

Coming Malacological Events Continued<br />

Aug. 1-<br />

CONCHOLOGISTS OF AMERICA<br />

ANNUAL CONVENTION<br />

Portland, Oregon<br />

The <strong>Mon</strong>arch Hotel, 12566 SE 93 rd Avenue,<br />

Clakamas, OR<br />

Joyce Matthys [addresses change during the year as<br />

shown]<br />

October – April: 1842<br />

Woodstock Circle NW,<br />

Salem, OR 97304<br />

(503) 585-5286<br />

May – September:<br />

1119 Periwinkle Way #52,<br />

Sanibel Island, FL 33957<br />

(239) 472-2885<br />

E-mail: joycematthys@aol.com<br />

Web site: www.conchologistsofamerica.org<br />

This information was collected and distributed by<br />

DONALD DAN, COA Award Chairman<br />

6704 Overlook Drive<br />

Ft. Myers, FL 33919, U.S.A.<br />

Tel. Voice & Fax (239) 481-6704<br />

E-mail: donaldan@aol.com<br />

Many thanks to Donald Dan for this service.<br />

<strong>Internet</strong> <strong>Hawaiian</strong> <strong>Shell</strong> <strong>News</strong> December 2006 <strong>Mon</strong>th Section page 7


A B C<br />

Vexillum (Costellaria)<br />

leucozonias<br />

(Deshayes, 1834<br />

1 with chipped lip<br />

September 2006 Recent Finds Report<br />

By Sid Sneidar<br />

At several recent HMS Meetings I passed out forms for recording and reporting molluscan observations<br />

This months return of such observations is by Dave Watts at Waianae and Nanakuli on the west<br />

side of Oahu, Hawaii were very productive. Two dives were made at 110’ - 120’ at Waianae and one at<br />

50’ -70’ at Nanakuli. On the Waianae dives, Dave had help from divers Bill Barney and Don Hubner.<br />

Thanks to all of you. Photos of the shells were taken by Mark Silva and follow with notes.<br />

Discounting the many diverse micro shells, the following is a partial list with some images of shells<br />

not needing a microscope for viewing. Most were from grunge taken under rubble.<br />

Euchelus corrugatus<br />

Pease, 1861<br />

1 Gem<br />

Bursa rosa<br />

(Perry, 1811)<br />

1<br />

<strong>Internet</strong> <strong>Hawaiian</strong> <strong>Shell</strong> <strong>News</strong> December 2006 <strong>Mon</strong>th Section page 8


Recent Finds continued<br />

A B C<br />

Cerithium rostratum<br />

Sowerby, 1855<br />

2 Fresh dead<br />

Conus pertusus<br />

Hwass in Bruguiere, 1792<br />

Faded<br />

D E<br />

F<br />

Imbricaria olivaeformis<br />

(Swainson, 1812)<br />

1 Fresh dead, immature<br />

Vexillum (Costellaria)<br />

filistriatum<br />

(Sowerby, 1874)<br />

Strombus dentatus<br />

Linnaeus, 1758<br />

1 Fresh dead<br />

Xenoturris kingae<br />

Powel, 1964<br />

<strong>Internet</strong> <strong>Hawaiian</strong> <strong>Shell</strong> <strong>News</strong> December 2006 <strong>Mon</strong>th Section page 9


A<br />

Molluscs not photographed were:<br />

Recent finds continued<br />

Vexillum (Pusia) rubrum<br />

(Broderip, 1836)<br />

3: 1 gem, 1 slightly faded, 1 very faded.<br />

Quantity Genus Species Author Comments<br />

2 Costellaria micra (Pilsbry, 1921) 1 fresh dead<br />

2 Vex. (Pusia) rubrum (Broderip, 1836) 1 fresh dead<br />

1 Imbricaria conovula (Q. & G., 1833 1 fresh dead<br />

1 Mitra newcombi Pease, 1969 1 faded<br />

3 Mitra typha Reeve, 1845 1 fresh dead<br />

1 M. (Strigatella) saltata Pease, 1865<br />

1 Modulus tectum (Gmelin, 1791) Gem<br />

1 Pterygia pudica (A. Adams, 1854) damaged aperture<br />

1 Scabricola newcombi (Pease, 1869) faded<br />

1 Strombus helli Kiener, 1843 immature lip<br />

Comments from <strong>Hawaiian</strong> Marine <strong>Shell</strong>s by E. Alison Kay re:<br />

Cerithiun rostratum, “This is a rarely found shell in <strong>Hawaiian</strong> waters etc.”<br />

Conus pertusus, “These cones are rather uncommon etc.”<br />

Vexillum rubrum, “These costellarids occur at depths of about 20m - to 60m”<br />

Euchelus corrugatus, “rare along shorelines of Oahu, Maui and Hawaii.”<br />

Mitra newcombi, “appears to be endemic to the <strong>Hawaiian</strong> Islands.”<br />

Mitra typha, “not uncommonly found at depths of from 20 to 100 meters”<br />

Pterygia pudica, “These miters are uncommon, occurring at depths of 16 to 80 m.”<br />

Strombus dentatus, “Living animals have been dredged at depths of 70 to 80 m.”<br />

Vexillum (Costellaria) leucozonias, “These costellarids are very rare etc.”<br />

Vexillum (Costellaria) filistriatum, “<strong>Shell</strong>s of V. filistriatum are uncommon etc.”<br />

<strong>Internet</strong> <strong>Hawaiian</strong> <strong>Shell</strong> <strong>News</strong> December 2006 <strong>Mon</strong>th Section page 10


More grunge finds by Sid Sneidar<br />

Reading some of my grunge articles, one may wonder, “Why is Sid saving all those dead damaged<br />

and faded shells?” The answer, quite simply is that shell collecting to me is and must remain a hobby. I<br />

do not strive to have the most, the largest, the most perfect or the rarest; either singly or collectively. For<br />

me, an imperfect or even partial shell in my collection is fine until a better specimen comes along. It is,<br />

nonetheless, a bit of an adrenalin rush to find a rare/uncommon or gem specimen of a shell; especially one<br />

not in my collection.<br />

Additionally, the hobby affords me the opportunity to associate with nice people of the same avocation,<br />

develop some digital imaging techniques using a stereo microscope, the computer and camera. It<br />

also helps keep the old gray matter functioning and the learning process is continuous.<br />

While doing a grunge sort collected by J. J. Jackson from the Makaha area of Oahu, Hawaii in<br />

early August of this year, I got that adrenalin rush when I found an Epitonium I had not seen in all my 15<br />

years of collecting the "wee ones".<br />

It is about .7.5 mm and I almost missed it while looking through my stereomicroscope. Wes<br />

Thorsson says he thinks it is an immature Epitoniidae Asperiscala goldsmithi DuShane, 1988 but conceeds<br />

it might be different.. I think it is closer to Epitonium thorssoni, DuShane, 1988 when comparing<br />

images in <strong>Hawaiian</strong> Epitoniidae by Helen DuShane.<br />

You be the judge: Images of all three are below. Sneidar photo on left, Dushane photos from<br />

HSN insert January, 1990 on right.<br />

Sneidar’s specimen<br />

Asperiscala goldsmithi<br />

Dushane, 1988<br />

Epitonium thorssoni<br />

Dushane, 1988<br />

<strong>Internet</strong> <strong>Hawaiian</strong> <strong>Shell</strong> <strong>News</strong> December 2006 <strong>Mon</strong>th Section page 11


Recent finds continued by David Watts: Cypraea ostergaardi<br />

Dall, 1921<br />

A B C<br />

D<br />

Cypraea ostergaardi Dall, 1921 18.6 mm<br />

I was off Waianae on Sunday afternoon diving with Bill Barney.<br />

On the first dive I was primarily looking for Pecten langfordi and not<br />

having much luck except for single valves which are always good for<br />

jewelry. Late in the dive as I was fanning some thick weed and light rubble,<br />

a small Cypraea popped up from near the top. The first thing I saw<br />

was a bright white base. When I turned it over to see what I had, I could<br />

see large dark spots along with a very dark dorsum. I knew I had a<br />

dead, but fairly decent Cypraea ostergaardi. I tucked the shell away in<br />

my lucky sock. I looked around the area for a few more minutes and<br />

then had to start back to the surface. On the boat when I took the shell<br />

out of the sock, I would see just how nice it was. See the photos above.<br />

The shell has great gloss all over the dorsum. Part of the base has a dull spot. It looks to me t be<br />

a very freshly dead shell. I’ve found quite a few dead Cypraea ostergaardi over time, but this is the best<br />

one I’ve found myself. It is far from one that has been dead for quite a while. I had assumed that Cypraea<br />

ostergaardi was no longer alive on Oahu but always hoped they would come back. Could it be<br />

that maybe this year they are coming back?<br />

We had no luck finding any more on the second dive that day, but we were surely looking.<br />

I had to wash my boat real well at the end of the day to get all the drool from Bill off the boat.<br />

<strong>Internet</strong> <strong>Hawaiian</strong> <strong>Shell</strong> <strong>News</strong> December 2006 <strong>Mon</strong>th Section page 12


Editor’s comments:<br />

So far as I know, most C. ostergaardi from<br />

Oahu were found near Waikiki. Ray McKinsey<br />

found one ten feet from me at Haleiwa one day<br />

many years ago at about 60 feet under rubble. I<br />

found one fairly far from that spot but also at<br />

Haleiwa in a goody bag someone had lost and left<br />

Recent finds continued by David Watts continued<br />

on the bottom. I also found a quite dead specimen<br />

off Waikiki after a hurricane had moved a lot of<br />

sand.<br />

The majority I know of are from Kauai<br />

where a group of us looked for several weeks in<br />

the correct area with no luck.<br />

We would be glad to hear from the rest of<br />

the lucky people who have found one or more.<br />

Cymatium rubeculum by David Watts<br />

A B<br />

Cymatium (Septa)<br />

rubeculum (Linnaeus, 1758)<br />

29.4 mm<br />

I was diving with Trenton Tam off Nanakuli<br />

on <strong>Mon</strong>day, 9 October, 2006. We were at<br />

about 40 to 50 feet deep, swimming along a ledge<br />

and I noticed a Cymatium under a small coral head.<br />

I got it out from under the coral head and could<br />

see that it was a large Cymatium rubeculum. It was<br />

crabbed, but still had the periostracum on it so it<br />

was fresh dead. I don’t find nice red specimens<br />

very often at all, and when I do, they are usually<br />

quite small. This one is quite large and in great<br />

shape.<br />

<strong>Internet</strong> <strong>Hawaiian</strong> <strong>Shell</strong> <strong>News</strong> December 2006 <strong>Mon</strong>th Section page 13


Conus Textile Diet by Wesley Thorsson<br />

I have been a collector and observer of<br />

molluscs since about the time I first was transferred<br />

to Hawaii in 1951. I had a simple 35 mm slide<br />

camera and photographed some shells in about<br />

1954, Not many great slides resulted from that<br />

camera. In 1989 I purchased a Pentax SLR camera<br />

with macro, and reversible wide angle lens along<br />

with a nice bellows that brought me into the world<br />

of macro photography. I photographed every live<br />

species that I could find or borrow. The results<br />

were mounted in loose leaf binders with photo corners<br />

and text computer-printed pasted alongside<br />

the photos. A number of the albums were completed<br />

in two books with covers having suitable<br />

photos of shells. One of two copies of each of the<br />

finished albums was donated to Bishop Museum.<br />

In later years, the albums were in computer<br />

files with the photos scanned into graphic files and<br />

inserted on file pages along with text. Each species<br />

was preceded by a thorough description of the species.<br />

When available, photos of the animals were<br />

included as one of the main goals of the albums.<br />

My computer room became vastly overcrowded<br />

with books, computers, printers, scanners,<br />

camera setups for still photos of shells and<br />

aquarium setups for animal photos. Time was at<br />

hand to reduce the number of things. I had arranged<br />

with the Academy of Natural Sciences in<br />

Philadelphia (ANSP) to send the photo albums to<br />

them for whatever use they could make of them.<br />

But prior to sending the albums, I scanned<br />

all those not on computer files so that I would still<br />

have access to the albums, but from my computer<br />

rather than book shelves. In scanning the Conidae<br />

albums, when I did Conus textile, I came across the<br />

following writeup:<br />

It was my understanding that Conus textile<br />

Linnaeus, 1758 fed on other mollusks about once a<br />

week. A C. textile placed in my aquarium for 13<br />

days had 2 to 3 meals a day, depending on the size<br />

of the shell eaten. The first night a Conus vexillum<br />

Gemlin, 1791 and a Cypraea gaskoini Reeve, 1846<br />

were emptied. The next morning I watched while a<br />

Cymatium (Septa) intermedius (Pease, 1869) was<br />

consumed in about an hour.<br />

When I ran low on food for it, I added 10<br />

Theodoxus cariosus (Wood, 1828) which I<br />

doubted would be eaten as it grows in splash zones<br />

compared to the Conus textile’s preference for<br />

deeper water. However, when one was dropped in<br />

front of the textile, it promptly grabbed it and<br />

brought it into its grip. No shooting of venom<br />

barbs was observed, merely the lifting and falling of<br />

the cone as it tried to get the animal out of the<br />

shell. In ten minutes the Theodoxus was empty and<br />

rejected.<br />

On another day I placed a Bursa granularis<br />

(Roding, 1798) nearby and the textile almost immediately<br />

injected venom into the body of the<br />

Bursa which promptly retracted into its shell. The<br />

textile inserted the front of its foot onto the Bursa<br />

and applied suction and gradually entered the<br />

Bursa’s shell. Thirty minutes later the Bursa was<br />

empty. When the textile injected venom into the<br />

Bursa, a brittle starfish, Ophiocoma pica Muller<br />

and Troschel, had its arms about 2 to 5 cm above<br />

the Bursa and immediately and most rapidly moved<br />

to the other side of the aquarium and then became<br />

spastic for a few minutes before becoming completely<br />

relaxed for about an hour. It then recovered<br />

normal activity. Apparently enough venom was<br />

sprayed in the general area to strongly affect the<br />

starfish.<br />

Other shells eaten were Cypraea schildeorum<br />

(Iredale, 1939), a second Cymatium intermedius,<br />

a second Bursa granularis, Cypraea sulcidentata<br />

Gray, 1824, Morula granulata (Duclos,<br />

1832), and it was attempting to eat a Nerita polita<br />

Linnaeus, 1758 (but it died with its operculum<br />

tightly closed) when I finally removed the textile<br />

for shipment. Ignored were: Bursa rhodostoma<br />

Sowerby, 1841 (which managed to keep far away<br />

from the textile), Conus ebraeus Linnaeus, 1758<br />

and some Isognomon legumen (Gmelin, 1791).<br />

<strong>Internet</strong> <strong>Hawaiian</strong> <strong>Shell</strong> <strong>News</strong> December 2006 <strong>Mon</strong>th Section page 14


Generally the textile is not a very fussy eater.<br />

One thing that is often difficult in dealing<br />

with dredged material is identifying juveniles.<br />

Very few shell books illustrate juveniles. Normally,<br />

it is considered improper to collect juveniles<br />

as you should leave them to grow up and reproduce.<br />

However, shells normally lay enough eggs<br />

to vastly overpopulate any area if all grow to maturity.<br />

Most of the young, particularly when they<br />

become part of the plankton are eaten by various<br />

other animals. Those many that are not eaten die<br />

A<br />

B<br />

Conus textile continued<br />

Conus textile<br />

Linnaeus, 1758.<br />

of other causes and become part of the sand on the<br />

bottom. When you dredge, a large portion of the<br />

shells in a dredge-haul are juveniles. They have<br />

been dead for some time so there is no advantage<br />

in just throwing them away. You should use them<br />

to establish a growth series to use in identifying juveniles.<br />

Following are photos of a few juvenile C.<br />

textiles.<br />

D E A is photo 069-18 station 790801AS 11mm.<br />

B is photo 088-07 station 890427BH 9 mm.<br />

C is photo 085-07 station 801118AH 3.2 mm.<br />

D is photo 060-16 station 790801AS 19 mm.<br />

E is photo 067-19 station 690927AS 88 mm<br />

Note: Fig. C is not a C. textile as indicated by the<br />

number of protoconch whorls. I had misidentified<br />

it. What is it?<br />

Frank Perron showed that specimens from the<br />

same batch of eggs of C. pennaceuscan have two<br />

different colored protoconchs.<br />

<strong>Internet</strong> <strong>Hawaiian</strong> <strong>Shell</strong> <strong>News</strong> December 2006 <strong>Mon</strong>th Section page 15<br />

C


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<strong>Internet</strong> <strong>Hawaiian</strong> <strong>Shell</strong> <strong>News</strong> December 2006 <strong>Mon</strong>th Section page 16

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