Biological observations on the crocodile shark Pseudocarcharias kamoharai

Abstract

Sex ratios and gravid characteristics were analysed for the crocodile shark Pseudocarcharias kamoharai from the tropical eastern Pacific Ocean. Gravid females ranged from 80 to 102 cm fork length (L F). The mode litter size was four (two embryos per uterus), mean embryo length was linearly correlated with maternal length (r = 0·465, n = 32); there was no significant difference in L F between female and male embryos. © 2011 The Authors. Journal of Fish Biology © 2011 The Fisheries Society of the British Isles.