MELVILL AND STANDEN : MARINE MOTJ.USCA OF MADRAS. 79 



Fissurella (Glyphis) ruppelli Sow. — Some characteristic ex- 

 amples. Mauritius, Red Sea, Cape of Good Hope. 



Emarginula costulata Dh. — One Madras example, and three 

 from Bombay (Abercrombie) hitherto unnamed in J. C. Melvill's 

 collection, with some slight doubt we refer as above. Id. of Reunion. 



Subemarginula (Clypidina) notata L * — Very prettily marked 

 with slatey indigo concentric lines and dashes. Tryon remarks that 

 the habitat, West Indies, given by Adams is doubtful, and that it 

 belongs rather to an East Indian type, an opinion borne out by this 

 record of ours from Madras, as well as a former one from Bombay. 



Scutus cf. corrugatus Rv. — Only small forms. Japan. 



Family AC\LEIDJE. 

 Acmsea saccharina L. — Some fairly typical specimens. 

 Amboyna to Japan ; Fiji Islands. 



Family PATELLIDJE. 

 Helcioniscus variegatus Rv. (=H. iota Gm. var.). — Many 

 specimens, agreeing with Tryon's definition. Suez and Mozambique 

 (Rv.) ; Id. of Reunion ; Madagascar (Dall). 



Class POLYPLACOPHORA. 

 Family CHITONIDM. 

 Ischnochiton sp. — Two small species which have not yet been 

 worked out, but both are probably new to science. We shall hope to 

 say more about them in a subsequent paper. 



Class SCAPHOPODA. 



Family DENTALIIDJE. 

 Dentalium octogonum Dh. — Several specimens. 

 Antalis fissura Lm. — One perfect example of this rare species. 

 Cadulus anguidens M. & S., vide an tea, p. 32. 



Class PELECYPODA. 



Order TETRABRANCHIATA. 



Family OSTREIDM. 



Ostrea denselamellosa Lischke. — Two characteristic examples, 



agreeing with Japanese specimens in the British Museum, and J. C. 



Melvill's collection. 



Family ANOMIIDM. 



Anomia humphreysiana Rv. — Only one valve, but charac- 

 teristic. 



Family LIM1D.E. 



Lima squamosa Lm. — Several, approaching the typical Red 

 Sea form. Red Sea, Mediterranean. 



