THE INVERTEBRATE LEGIONS 



123 



PTEROPODS 



CKallenqer-'if in 



BOB-TAILED SQUID 

 Roisia- 4 in. 



ARGONAUT 

 ESe CASE -"t in. 



Fig. 41. Clams, peropods, cephalopods and hrachiopods. Adapted from the Reports 

 of H.M.S. Challenger (1873-76) and McGoxvan (J 954) and draivn from life. 



