1897-98.] Prof. D’Arcy W. Thompson on Marine Faunas. 337 
most of the Polyzoa, and a number of mostly very small 
molluscan shells : — 
Obelia geniculata , (L.). 
Flabellum apertum , Moseley. 
Placostegus ornatus, Sow. 
The eight species of Ostracods. 
Glomus nitens, Jeff. 
Kellia suborbicularis , Mont. 
Dentalium Iter as, Watson. 
Trochus infundibulum, Watson. 
Puncturella noachina , (L.). 
Homalogyra atomus, Phil. 
Pustulipora proboscidioides, Smit. 
Horner a lichenoides, (L.). 
„ violacea, Sars. 
Membranipora galeata, Busk. 
Escharoides verruculata , (Smit.). 
Diachoris magellanica, Busk. 
Platydia anomioides, (Scacchi). 
We next come to a considerable number of forms in which the 
northern specimens identified (often dubiously enough) with The 
southern come, not from the North Atlantic, hut only from the 
North Pacific, and mainly from Japan. 
Southern Forms not represented in the North Atlantic but in the 
North Pacific . 
Cereus spinosus, K. Hertwig. Japan. 
Liponema multipora, R. Hertwig. Japan. 
Holothuria Thomsoni, Theel. Japan (?). 
Lcetmogone Wyville-Thomsoni , Theel. Japan. 
Phormosoma hoplacantha, Wy. Th. Japan. 
Ophiacantha rosea, Lym. Japan. 
Eurycope fragilis, P. E. B. Japan. 
Glyphocrangon rimapes , Sp. B. Japan. 
Munidopsis subsquamosus , Hend. Japan. 
