176 



St.u. 47*- Entrance ba M. Fine sand. 2 Spec. 



St.it. 213. South-island, ncar Saleyer. Reef. 1 Spi 



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

 the bay of Bima. 



1 ;. / Mastonia ?) sp. 



. Pulu Sangui rawi-Tawi-islands, Sulu-archipelago. 12 BA. Lithotharanion-bottom 



: and coral. 1 Spec. 



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



14. Triphora Mastonia J sp. 



Stat. 2j$. Pulu Jedan, Kast coast of Aru-islands. 13 M. Saiul and shells. 1 Spec. 



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

 ription. 



[5. Triphora {I nel la) sp. 



Stat. 310. 8° 30 S., ii9°7'.5 E. Flores Sea. ~ji M. Sand with few pieces of dead coral. 1 Spec. 



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

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



Fam . Tric noTKOi'i n.\ E. 

 Trichotropis Broderip & Sowerby. 



1 . Trichotropis pulchcrrima 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. 1 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 an tic animals only at considerable depths, but the specimen from the Gulf of Oman 

 has been found at 25 fathoms. 



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



Stat. 211. 5°4o'.7S., i20°45.5E. Banda Sea. 115S M. Coarsc grey mud. 1 Spec. 



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

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



68 



