6 U.S. NATIONAL MUSEUM BULLETIN 23 4 



upon the few endemic species because in all likelihood extensive 

 collecting in the Indo-Malayan region will show that the present 

 endemic species have a wide range. 



The endemic species and subspecies from the PhiUppines are: 



Sepia prionota Sepiola trirostrata 



Sepiadarium gracilis Loligo sp. A 



Euprymna phenax Doryieuthis reesi 



E. albatrossae Calliteuthis celetaria paciUca 



Nototodarus sloani philippinensis 



Before 1954, when Adam published his final Siboga report, Uroteu- 

 this bartschi would have been added to the list, but he showed that it 

 also occurs in Indonesia. As to be expected, the endemic species 

 are mainly Sepioidea, whose species, with the exception of those of 

 the genus Sepia, tend toward localization. Idiosepius pygmaeus also 

 shows a tendency towards local variation, but on the basis of this 

 study the Philippine forms do not warrant nomenclatural separation. 

 Calliteuthis celetaria is a widely distributed bathypelagic species. 

 The form named from the Philippines undoubtedly represents the 

 Indo-Pacific branch, distinct from the Atlantic form. Nototodarus 

 sloani philippinensis I consider to be the Indo-Malayan form of 

 this widely distributed species. 



Of the remaining 43 species, the 13 hsted below are worldwide in 

 distribution in warm and temperate seas: 



Onychoteuthis banksi Japetella diaphana 



Octopoteuthis sicula Eledonella pygmaea 



Calliteuthis meleagroteuthis Octopus macropus 



Cranchia scabra 0. vulgaris 



Liocranchia reinhardti Argonauta argo 



Taonius pavo A. hians 

 Bathothauma lyromma 



These forms are either pelagic or bathypelagic as adults or, like 

 Octopus vulgaris and 0. macropus, they have planktonic larvae. 



Seventeen species may be considered to belong to the Indo-Pacific 

 fauna although in some cases their presence on the East African coast 

 has not been demonstrated: 



Nautilus pompilius Chiroteuthis imperator 



Sepia pharaonis Symplectoteuthis oualaniensis 



S. lativianus Mastigoteuthis cordiformis 



Euprymna stenodactyla Octopus membranaceus 



E. morsei 0. horridus 



Loligo duvauceli 0. teuthoides 



Sepioteuthis lessoniana Argonauta nodosa 



Abralia andamanica A. bottgeri 

 A. spdrcki 



