120 JOURNAI/ OF CONCHOLOr.Y, VOL. II, NO. 4, OCTOBER, I904. 



than the heavier, darker, laterally thickened Karachi examples, 

 but these two extremes are insensibly joined by intermediates. 



Cypraea listeri Gray. 



P.G. Gulf of Oman : Ras el Hadd, near Maskat. Rare. 



Cypraea mauritiana L. 

 P.G. Gulf of Oman, Maskat. 



Obtained from the natives, who said they had found them on rocks 

 at extremely low tide (F.W.T.). 



Cypraea moneta L. 



P.G. Gulf of Oman, Maskat. 



Exported in quantity to India, along with C. amiulus L. These 

 two so-called species are probably but the extremes of one variable 

 mollusc. 



Cypraea ocellata L. 

 P.G. M.C. I. 



The finest series, probably, that has ever been collected, numbering 

 many hundred examples, arrived from Karachi in greater part, some 

 from other portions of the Mekran coast, and from Dabai, Persian Gulf. 



The variation is considerable ; from the simple normal oval shell, 

 with speckled or lineate base, dorsally-coloured fulvous or raw sienna, 

 flecked with close round white spots, many eyed, to the large, very 

 highly coloured form, with unusual suffusion, intensified dottings and 

 ocellations, which constitutes the var. calophthalma. 



The chief variation, however, consists not so much in form as in 

 colour. A pale pinkish-livid or grey shell, from Karachi, is most pecu- 

 liar and remarkable. In form and marking it is as the type ; the basal 

 lineations are faint, but normal. The colour, however, shows no trace 

 of brown. This very rare variety we propose to designate as var. 

 pelidtia (TreXiSvos, livid). 



The form with the ocelli absent ( palaihd) has only, so far, occurred 

 once in the Persian Gulf. 



Two particularly dwarfed examples were dredged, lat. i8° 58' N., 

 long. 71° 45', 40 fathoms. 



Cypraea onyx L. 



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

 principally at the head of the Gulf Between Bushire and Fao, on 

 on the telegraph cable, ten to twenty fathoms. Var. adusta ouly. 



I. — Karachi; occurs very sparsely. Type absent, vars. adusta and 

 succijiata are about equally represented. 



