378 MESSRS. MELVILL AND STANDEN 0> T [June 18, 



Fam. TURBITELLID.E. 

 TURRITELLA BACILLUH Kien. 



M.C. Ormara. 



I. Bombay (Abercrombie). Only in juvenile condition. It 

 is T. cerea Reeve. 



TURRITELLA CINGULIFERA Sowb. 



P G. Linjah, 3| fathoms. Gulf of Oman, Malcolm Inlet 

 (Kubbatt Ghazira). Mostly young. 



Turritella fultoni Melv. (Plate XXI. fig. 8.) 



P.G. Linjah. Henjam Island ; 7-25 fathoms, live, fine speci- 

 mens. Gulf of Oman, Jask beach. 



M.C. Charbar. Ormara Bay ; 2 fathoms, in sand. 



The type, described in 1897 from the last-mentioned locality on 

 the Mekran Coast, was only 27 mm. in length, and now, from 

 Henjam Island, have been brought fine examples nearly 3 inches 

 long, but w ith the same' characters of pure white coloration and 

 revolving lirae. This species was first found by Mr. W. D. Gumming, 

 whose specimens are in the British Museum, but till lately 

 unlabelled. 



Turritella terebba L. 



Var. spectrum Reeve (sp.). 

 P.G. Bunder Abbas (31. F. Houssay). 



Turritella (Haustator) columnaris Kien. 

 P.G. Shaikh Shuaib Island. 3-10 fathoms. 

 Gulf of Oman, Maskat. 5-12 fathoms, muddy sand and 



stones. 



Turritella (Haustator) maculata Eve. 



P.G. Shaikh Shuaib Island. Gulf of Oman, Maskat. 5-12 

 fathoms, muddy sand, accompanying the last-named (T. colum- 

 naris). 



Turritella (Haustator) vittulata Ad. & Rve. 

 P.G. Gulf of Oman, Jask. 5 fathoms, muddy rocks. 



Turritella (Torcula) exoleta L. 



P.G. Gulf of Omau, Maskat. 15 fathoms. 



T. cochlea Reeve is synonymic. 



Turritella (Zaria) duplicata L. 

 I. Bombay (Abercrombie), plentifully. 



Mathilda gracillima, sp. n. (Plate XXII. fig. 18.) 

 M. testa gradato-attenuato, fusiformi, albida, delicata ; anfractibus 

 8-9, quorum duo apicales vitrei, Iceves, globosi, cceteris midtum 



