PELAGIC ANIMAL LIFE 



59: 



Most pelagic squids belong to the CEgopsidse, which present a wealth 

 of forms ranging from minute fantastically shaped deep-sea species to 

 the giant squids. 



The Enoploteuthidae obtained by us are small forms previously 

 known from the Atlantic and Indian Oceans. 

 The general occurrence of PterygioteutJiis giardi 

 (see Fig. 434) seems to justify the conclusion 

 that it is a very common pelagic species, inhabit- 

 ing the open ocean far from land ; it is provided 

 with light-organs. The larvae belonging to this 



**' 



Fig. 435. 

 Larva of Enoploteuthidae (^x)- (From Chun. ) 



family are very abundant in the North Atlantic 

 (see Fig. 435). 



Of the family Onychoteuthidae many unde- 

 termined larvae have been taken by the " Michael 

 Sars," which are of great interest as proving the 

 occurrence of this group ; a larval form taken by 

 the " Valdivia " is shown in Fig. 436. Onyclio- 

 teutJiis banksii occurs from the Mediterranean 

 to the Kattegat and Skagerrack and along the 

 entire coast of Norway. Octopodoteuthis sicida 

 and CalliteutJns reversa are minute forms, the former known from 

 the north-eastern part of the Atlantic, while the latter is widely dis- 

 tributed in the surface waters of the Indian and Pacific Oceans, and has 



Fig. 436. 

 of Teleoteuthis caribtpa. 

 .(f). (From Chun. ) 



Fig. 437. 

 Calliteuthis reversa, Verrill (f ). 



(P'rom Chun.) 



light-organs (see Fig. 437). Ctenopteryx siculus, Brachioteiithis riisei, and 

 the three species of Doratopsis are small and live presumably in the 

 upper water-layers. Doratopsis exophthalmica (Fig. 438) is noticeable 

 on account of its remarkable eyes (see Fig. 439). 



The families Ommatostrephidae, Gonatidae, and Chiroteuthidae 



