Dr. Alexandra Hiller, Bernd Werding
Info
Petrolisthes aegyptiacus is initially particularly conspicuous for its coloration, the anterior part of the carapace and the chelipeds white or beige, the chelipeds may be entirely white but usually show vivid red spots on the tips of the claws.
A row of small, purplish spots may line the outer edge of the carpus and manus.
The front of the carapace may be lined with a few irregular, purplish-brown spots, while a larger purplish spot demarcates the lower margin of the eyes.
The metabranchial regions exhibit a large, crescent-shaped red spot extending to the ends of the walking legs.
The walking legs exhibit a ring-like pattern, and the surface of the legs may be dark purple to red.
The red spots of the posterior part of the carapace extend to the lateral part of the abdominal segments, visible in dorsal view.
The middle part of the first two or three segments of the abdomen is beige, interrupted by irregular red spots.
The remaining posterior segments of the abdomen are entirely purple.
The whitish and reddish coloration typical of Petrolisthes aegyptiacus indicates a camouflage strategy, since the color of the substrate inhabited by the species is usually spotted with red foraminifera.
The new species is named after Gustav Paulay, who supported this and other studies of Porcellanidae, and entrusted the porcellanid collection to the Florida Museum of Natural History
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5027768/
Zookeys. 2016; (617): 19–29.
Published online 2016 Sep 15. doi: 10.3897/zookeys.617.9893
A new species of the genus Petrolisthes Stimpson (Crustacea, Decapoda, Porcellanidae) from the Central Pacific, with remarks and new records for P. aegyptiacus Werding & Hiller
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
A row of small, purplish spots may line the outer edge of the carpus and manus.
The front of the carapace may be lined with a few irregular, purplish-brown spots, while a larger purplish spot demarcates the lower margin of the eyes.
The metabranchial regions exhibit a large, crescent-shaped red spot extending to the ends of the walking legs.
The walking legs exhibit a ring-like pattern, and the surface of the legs may be dark purple to red.
The red spots of the posterior part of the carapace extend to the lateral part of the abdominal segments, visible in dorsal view.
The middle part of the first two or three segments of the abdomen is beige, interrupted by irregular red spots.
The remaining posterior segments of the abdomen are entirely purple.
The whitish and reddish coloration typical of Petrolisthes aegyptiacus indicates a camouflage strategy, since the color of the substrate inhabited by the species is usually spotted with red foraminifera.
The new species is named after Gustav Paulay, who supported this and other studies of Porcellanidae, and entrusted the porcellanid collection to the Florida Museum of Natural History
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5027768/
Zookeys. 2016; (617): 19–29.
Published online 2016 Sep 15. doi: 10.3897/zookeys.617.9893
A new species of the genus Petrolisthes Stimpson (Crustacea, Decapoda, Porcellanidae) from the Central Pacific, with remarks and new records for P. aegyptiacus Werding & Hiller
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
