1901.] MOLLUSKS mOM THE PERSIAN GULF. 383 



CYPE.i;A LAMAECKII Grraj. 



I. Bombay {Ahercromhie). 

 Ctpr^a lentiginosa Gray. 



P.G-. Shaikh Shuaib Island. 5 to 10 fathoms, coral and stones. 



M.C. Locally general. 



I. Karachi. Here the finest examples have been dredged, 

 and also occur at very low tide amongst muddy rocks. Bombay 

 (Abercrombie). Extends south to Ceylon. 



CYPKiEA LiSTERi Gray. 



P.G. Gulf of Oman : Eas El Hadd, near Maskat, very 

 infrequent. 



Cype^a maueitiana L. 



P.G. Gulf of Oman, Maskat. Obtained from the native boat- 

 men, who said they had found them on rocks at extreme low tide 

 (F. W. T.). 



Cype^a moneta L. 



P.G. Gulf of Oman, Maskat. Exported in quantity to India 

 with C. annulus L., these two so-called species probably being the 

 extremes of one variable mollusc. 



Cype^a ocellata L. 

 P.G. M.C. I. 



Generally dilfused, mostly occurring at low tide amongst muddy 

 stones. The finest specimens occur off Karachi. One example is 

 particularly noticeable, being, though normal in size and marking, 

 of a pale lilac-cinereous hue with pink suffusion, resembling 

 C. listeri Gray. 



Yar. caloj)hthahna Melv. 



One example occurred only of tbe form with large ocellations. 



A pale sub-pellucent form occurred in lat. 18° 58' N., long. 

 71° 45' E., 40 fathoms. 



CvPEiEA ONYX L. 



P.G. Adhering to the telegraph-cable from 15 fathoms, mud, 

 principally at the head of the Gulf. 

 I. Karachi : sparsely occurring. 



Cypr^a pallida Gray. 



I. Karachi. At low tide, under muddy rocks. 



Variable as regards marking and coloration, the series in this 

 collection being almost uniquely beautiful, embracing every grada- 

 tion between plain cinereous and rich brown with large dorsal 

 maculations. Bombay {Abercrombie). 



Cype^a pulchella Swains. 

 P.G. Gulf of Oman. 



Adhering to telegraph-cable, from 50 fathoms, mud. One 

 variety, very perfect, not exceeding | inch longitudinally. 



