796 MESSRS. MELVII-.L AND STANDEN ON [Nov. 13,. 



AncA (Scapharca) natalensis Krauss. 



P.G. Dabai, 8 fathoms. 



The head-quarters of this species are, as its name implies, South 

 African. 



Arca (Scapharca) rhombea Born. 

 I. Bombay (^Abercromhie). 



Arca (Scapharca) rufescens Reeve. 

 P.G. Dabai, 8 fathoms. 

 I. Karachi (October 1894). 



Arca (Anomalocardia) granosa Lam. 



I. Bombay (^Ahercrombie). A conspicuous species, common in 

 this locality, but not yet recorded furthei- north. Largely eaten 

 by the natives along the Indian coast {Ca'ptcmi A. J. Peile). 



Parallelipipedum tortuosum (L.). 



P.G-. Henjam Island ; dredged at 17 fathoms, mud bottom^ 

 Dabai at 8 fathoms. 



I. Karachi ; at 3 fathoms, mud and loose rocks. Between 

 Bombay and Ratnagiri {E. H. Aitken). Off Bombay, dredged, 

 half- valves {F. W. T.), 1906. 



CucuLLiEA concamerata (Cliemn.). 



P.G. Maskat Jask ; dredged at 10 fathoms, muddy sand. 

 3 fathoms, sand. 



Barbatia CYMBiEFORMis Reeve. 

 I. Karachi. 



Barbatia divaricata Sowb. { = ohliquata Wood). 



I. Karachi. Found under rocks at half-tide {F. W. T. and 

 Major Baker). Bombay, but rare (A. Ahercrombie). 



Barbatia bomingensis Lam. {=^ squamosa Lam.). 



P.G. Gulf of Oman ; lat. 26° 50' N., long. 54° 50' E. Also 

 Maskat, 15 fathoms. A species of increasingly wide distribution. 

 Also dredged at 48-49 fathoms by the ' Investigator ' in the Gulf 

 of Oman. 



Barbatia illota Sowb. 



P.G. Very local. Some little doubt exists as to the deter- 

 mination of this .-species. The typical illota are from Western. 

 Tropical America. 



Barbatia imbricata (Brug.). 



P.G. Henjam Island. 15 fathoms, mud. 

 M.C. Charbar Point. 7 fathoms. 



I, Karachi.. 

 This appears to be 7?. dathrata (Lam.). 



