14 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 7 



Acc. 587. D 90. Dredged off southern California. 

 *Eusigalion spinosum, new species 



Acc. 590. D 93. Near Rocky Point, vicinity of Los Angeles, Cali- 

 fornia. Dredged. 

 Aphrodita armifera Moore 

 *Eusigalion spinosum, new species 



D 104. Santa Catalina Island, California. Dredged. 

 Aphrodita armifera Moore 



Acc. 622. D 133. White's Point, southern California. Dredged. 

 Halosydna latior Chamberlin 



Table I below indicates the main geographical areas investigated by 

 the Allan Hancock Pacific Expeditions and gives the species, grouped 

 by families, taken from these areas. The numbers in the columns refer 

 to the stations investigated, without the year number. Complete station 

 numbers may be consulted in the list above. Areas indicated by x refer 

 to stations for which there are collections made other than by the Han- 

 cock Expeditions, or for previous records from the literature. 



It is to be observed that, of a total of 59 species, few are common 

 to the northern and southern eastern Pacific. Thus, for example, only 

 5 species (Aphrodita japonica, Arctonoe vittata, Thormora johnstoni, 

 Sthenelais jusca, and Sthenelais verruculosa) have been taken over this 

 range. In addition, there are only 6 species (Aphrodita refulgida, Halo- 

 sydna latior, Pareulepis fi?nbriata, Eusigalion spinosum, Leanira fim- 

 briarum, and Sthenelanella uniformis) common to southern California 

 and the equatorial or subequatorial Pacific. Also, the affinities of the 

 fauna of the Gulf of California are seemingly with that of western 

 Mexico, on the one hand, and the Galapagos, on the other. 



