Request for Shark and Ray Egg Cases

To assist an ambitious cooperative project with Peter Bor and Hajime Ishihara, we request shark and skate egg cases from any part of the globe.  Our project consists of examining evolutionary and ecological correlates of egg case morphology in elasmobranch fishes.  In particular, we are interested in exploring how egg case morphology is shaped by habitat and constrained by phylogeny (descent).  This is a long-term project and we already have the egg cases of a number of species represented.  Eventually, I hope to present a sort of 'wish list' of species from which egg cases are particularly sought. In the mean time, however, I'd like to ask that any shark or skate egg case you are willing to donate or permit us to examine be sent to:

R. Aidan Martin
ReefQuest Centre for Shark Research
P.O. Box 48561
595 Burrard Street
Vancouver, BC   V7X 1A3
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ReefQuest Centre for Shark Research
Text and illustrations R. Aidan Martin
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