1906.] MOLLUSKS FROM THE PEJiSIAX GULF. 



829 



[TivELA TRiaoNELLA Lamk. 



I. Karachi {Major Baker). An Antillean species: we have 

 seen no Eastern specimens.] 



Meretrix impudica Cliemn. 



Vai-. castanea Lamk. 

 ,, mor'phina Lamk. 

 I. Bombay (xibercrombie), abundant. Not yet recorded fmthtr 

 north ; though southwards it has been noticed, mainly in the 

 var. castanea, to range from Bombay to Ratnagii-i, Goa, and 

 Panjim (Lt.-Col. H. L. Olivier). In Lidia this species is largely 

 eaten {E. H. Aitken). 



Meretrix petechialis Lamk. 



I. Bombay {Abercroonhie). 



Although by many malacologists still left distinct, petechicdis is 

 most pi'obably an exti'eme form of impudica. 



Meretrix tumida Sowb. 



Meretrix {Caryatis) tumida Sowb. Proc. Malac. 8oc. Lond. i. 

 p. 280, pi. xviii. figs. 12, 13 (1895). 



J. Karachi. 



A distinct species, discovered by Mr. Townsend in 1893. 



Meretrix zoxaria Lamk. 



I. Karachi. 



Also probably a vaiiety of impudica, though in typical condition 

 seeming distinxjt. Mr. Alexander Abercrombie, who collected 

 multitudinous examples of most of the varieties in Bombay, 

 informs us that, in his opinion, even the most distinctly marked 

 forms have intermediates, binding them to typical impudica. 



Callista festiva Sowb. 



P.G. Jask. 



I. Karachi. Dug out of mud, at low tide, or at the sides 

 of creeks which intersect mud-flats. 



Callista belcheri Sowb. 



P.G. Shaikh Shuaib I. Gulf of Oman, Malcolm Inlet (Kubbat 

 or Ghobat Ghazira) ; 24 fathoms, mud. 



Callista erycina (L.). 



I. Between Bombay and Katnagiri {E. H. Aitken). 



Callista Florida Lam. 

 I. Karachi. 



Callista hagenowi Dkr. 



P.G. Dabai, in various stages of growth A handsome species,. 



