176 



Stat. 47". Entrance bay of Bima. 320 M. Fine sand. 2 Spec. 

 Stat. 213. South-island, near Saleyer. Reef, i Spec. 



The specimen from Stat. 213 is rather young but agrees in sculpture with those from 

 the bay of Bima. 



13. Triphora (Mastonia ?) sp. 



Stat. 93. Pulu Sanguisiapo, Tawi-Tawi-islands, Sulu-archipelago. 12 M. Lithothamnion-bottom 

 sand and coral, i Spec. 



The specimen is too young to ascertain even its subgeneric position. 



14. Triphora (Mastonia) sp. 



Stat. 273. Pulu Jedan, East coast of Aru-islands. 13 M. Sand and shells, i Spec. 



The specimen, though probably belonging to an undescribed species, is too young for 

 description. 



15. Triphora (Inella) sp. 



Stat. 310. 8°3o'S., 119° 7'. 5 E. Flores Sea. "Ji M. Sand with few pieces of dead coral, i Spec. 



The only specimen is not quite adult and of irregular shape, by haying been broken in 

 its youth, so I don't venture to describe it as new. 



Fam. Trichotropidae. 

 Trichotropis Broderip & Sowerby. 



1. Trichotropis pidcherrima Melvill & Standen. 



Melvill & Standen. Ann. and Mag. Nat. Hist. Ser. 7, Vol. XII, p. 296, PI. 20, fig. 15. 



Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. I Spec. 



The ''Siboga"-specimen is smaller than the type, being only 16 Mill, in length, the 

 type 24 Mill., the columellar margin is not so straight as is the quoted figure. I think these 

 differences may depend on age or be individual. Shape and sculpture agree so well with the 

 figure, that I dare not describe a new species on such slight differences. One should expect to 

 find such arctic animals only at considerable depths, but the specimen from the Gulf of Oman 

 has been found at 25 fathoms. 



2. Trichotropis orientalis n. sp. PL XII, fig. 2. 



Stat. 211. 5°4o'.7S., i20°45'.5 E. Banda Sea. 1158 M. Coarse grey mud. i Spec. 



Shell turbinate, subdiscoid, with three strong keels or spiral ribs on the last whorl, 

 yellowish-brown. Whorls 6, of which 4 nuclear ones are smooth, convex, and form a small cone; 



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