1$01.] MOLLUBKR FROM THE PERSIAN GULF. 425 



aTaecfxella ( Gibberula) fcsiformis Hinds. 

 P.G. Gulf of Oman, Maekat. 15 fathoms. Also lat. 24 c 

 5' X., long. 57" 55' E.. 205 fathoms. 



Maroixella (Gibbekula) mom lis L. 



P.G. Maskat. 15 fathoms. The var. terveriana Petit has 

 also occurred . 



aIaroi>~ella (Gibbeuula) mazagonica Melv. 



P.G. Linjah, 3^ fathoms. Bushire and Kishm Island, 

 7 fathoms, soft mud. Gulf of Oman, Maskat, 15 fathoms. 

 Lr.t. 24 e 5 X., long. ~>7 55' E., 205 fathoms. 



M.G. Charbar. 2 to 7 fathoms. 



I. Karachi. Bombay (Abercrombi ). 



AIargesella (Gibberula) xevilli Jouss. (^iiH-nnqrlcua Nevill, 

 non Sowb.). 



I. Bombay. Xot in Abercrombie's collectiou. 



MAaenraLLA (GlBBERULA) shupea> t di Melv. 



P.G. M.C. I. Seemingly widely distributed and usually 

 collected alive, the shell then being beautifully transparent. 

 Among loose stones, sand, and mud. It seems placed better as a 

 Gibberula than in the section Cryptospira. 



aIargixella (Cryptospira) mabkll.e, sp. n. (Plate XXIII. 

 fig. 20.) 



M. testa nitida, oblonya, pallide straminea, solida ; anfractibus 

 quatuor, supernis caUositate fere celatis, ultimo obscurissime 

 ''liter liciitcto ; apertura angusta, oblonya, straminea, labro 

 e.ctus ft re redo, albo, nitidissimo, caUositate crassa ochracea 

 dorsaliter marginata ; columella, alba, late callo tenni nitente 

 eontecta, quadriplicate. 

 Long. 16*50, lat. 6 mm. 



Hah. Arabian Sea, off Indian coast, lat. 18° 43' X T ., 

 long. 71 43 E. Found adhering to old telegraph-cable when 

 raised for repair. 



A form distinct from any near ally. We think it more of a 

 Cryptospira than a Prunum, though it might be placed equally well 

 in either subgenus. In form it most recalls the West-Indian 

 M. oblonga Sowb. It is gracefully oblong, very shining, straw- 

 coloured, with white shining callous deposit over the columellar 

 region and outer 1 i j > ; the dorsal margin thick, with straw-coloured 

 callus ; mouth narrow, columella four times plaited. 



.M\ ito I M.i. I. a (CbYPTOBPIBA) 0,1 OTQ1 i.i-i.k vv \ Lam. 



M.C. ■• Rare,* 1 without particular locality given. 



M \u<,iM.u.\ * I'i.khi i i.\ i Dure Eteeve. 

 I. Angrias l>ank (Captain TindaU). 



