1901.] MOLLUSKS PEOM THE PBESIAK GULF. 351 



EUCHELUS HOREIDUS Phil. 



M.C. I. Karachi. 



EuCHELUS IKDICTIS A. Ad. 



I. Bombay. Abundant (Ahercromhie). Groa (Lieut-Col. H. D. 

 Olivier). 



EucHELUS PEESicus V. Mart. 



P.G. Bunder- Abbas (if. F. Houssay). 



1. Karachi (W. 0. Carphin). 

 Nearly allied to E. atratus Gm. 



EuCHELUS PfiOXIMFS A. Ad. 



I. Karachi. At 5 fathoms, hard muddy sand. 



EucHELTJs QUADE.ICAEINATUS Chemn. 



I. Bombay {Abercrombie), 



Turcica (Peeeinia) stellata A, Ad. 



P.Gr. Gulf of Oman, Maskat. 15 fathoms, alive. 



M.C. Charbar. 7 fathoms, dead examples only. 



Umbonium TESTiAEiUM L. (Rotellcc Lam.). 



P.G. Bunder- Abbas (M. F. Houssay). 



M.C. Abundant. 



I. Karachi (W. C. Carj)hin). Bombay (^6ercrom&{e), in count- 

 less thousands, possessing all the shades of colour, variety, and 

 differentiation in marking. Bassein and Goa (Lt.-Ool. H. D. 

 Olivier), 



Var. depressa Ad. (sp.). 



I. Karachi. Inseparable specifically from the type. 



Ethalia caeneolata Mel v. 



P.G. Shaikh Shuaib Is. 10 fathoms, coral-sand. Gulf of 

 Oman, Maskat. 10 fathoms. 



Ethalia minolina Melv. 



P.G. Gulf of Oman, Maskat. At 10 fathoms, muddy and 

 coral-sand. Much rarer than E. carneolata. 



ISANDA CEENELLIEEEA A. Ad. 



I. Bombay (Abercrombie). 



Eor some information about this species and its allies, cf. Journ. 

 Linn. Soc, Zool. vol. xxvii. pp. 177, 178. 



Earn. TuEBiNiD^. 



Phasianella elachista Melv., nom. nov, 



Phasianella minima Melv. P. Malac. Soc. Lond. ii. p. 115, non 

 Phil. 



P.G. Bu shire. Off anchor, Bunder- Abbas. 



I. Karachi. Abundant, found amongst muddy stones in 

 shoal-water. Bombay {Abercrombie). 



