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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