360 MESSRS. MELV1LL AND STANDEN OX [June 18, 



Natica (Mamilla) uelanostoma Gniel. 



Var. fibrosa Souleyet. 

 P.G. Gulf of Oman, Maskat. 24 fathoms, mud. 



Var. zanzibarica Recluz. 

 M.C. No special locality meutioued. 

 I. Bombay (Abercrombie). 



SlGARETUS CUVIERIANUS RecluZ. 



1. Bombay (Abercrombie). 



iSlGARETUS NERITOIDEUS L. 



I. Karachi. 



SlGARETUS PLANULATUS BecluZ. 



I. Bombay (Abercrombie). 



SlGARETUS (EUNATICINA) FIBULA Eve. 



I. Bombay (Abercrombie). 



Sigaretus (Eunaticina) papilla Gmel. 

 P.G. Gulf of Oman, Jask. 

 M.C. East of Jask to Charbar. 



I. Karachi. Bombay (Abercrombie). 



Sigaretus (Eunaticina) pellucidus Kve. 

 P.G. Kais Island. 14 fathoms, among broken shells and coral, 

 sand. 



Sigaretus (Eunaticina) pomatiella Melv. 



Naticina pomatiella Melv. Mem. Manch. Soc. vii. p. 62. 



P.G. Linjah, 3| fathoms. 



I. Bombay (Abercrombie). 

 Was dredged off Ceylonese coast (Capt. W. A. Tindatt). 



Earn. Trichotropid-e. 

 Trichotropis townsendi, sp. n. (Plate XXII. fig. 7.) 

 T. testa parva, imperforata, alba, epidermide fuscata contecta, 

 triplici setarum serie spirali prcedita ; anfractibus 4|, quorum 

 apicales 1| nitidi, candidi, perlceves, depressi, cceteris arete 

 decussato-cancellatis et alveaiis, interstitiis quadratulis, ultimo 

 anfractu usque ad basim alveato, cateros magnopere superante; 

 apertura subquadrata, alba, tenui, ad basim breviter rostrato, 

 truncatulo. 

 Alt. 5, diam. 3*25, sp. may. 



Hah. P.G. Gulf of Oman, lat. 24° 5' N., long. 57° 35' E., at 205 

 fathoms, mud ; and lat. 25° 31' N., long. 57° 14' E., at 198 fathoms, 

 mud. Also lat. 25° 14' N., long. 59° 45' E., 80 fathoms. 



It is very interesting to announce the discovery of an Arctic 

 genus;in Indian waters. Though, as seen by the dimensions just 

 given, it is a small species, T. townsendi is one of the most re- 

 markable of the many forms discovered by him who3e name it 



