new Deep-sea Mollusca. 371 



I do not agree with Kiener and Tryon in considering this 

 form a variety of the common R. curvirostris. The points of 

 difference referred to by Sowerby and Reeve appear to be 

 persistent; they consist of (1) the shorter body- whorl, (2) the 

 longer and straighter canal, (3) the broad brown band beneath 

 the suture. Judging from the description and figure, R. luteo- 

 stoma of Angas, also considered by Tryon a variety of 

 curvirostris, appears sufficiently distinct. 



Puncturella (Cranopsis) asturiana (Fischer). 



Puncturella {Cranopsis) asturiann (Fischer), Watson, Gaster. 'Chal- 

 lenger' Exped. p. 45, pi. iv. tig. 4; Pilsbrs', Man. Conch, vol. xii. 

 p. 241, pi. xxvi. tigs. 3G, 37; Dall, Bull. Mus. Coinp. Zool. Harvard, 

 vol. xviii. p. 404. 



Hah. Bay of Bi-scay, 480-670 fathoms (FiscAer); W.Indies, 

 85-640 fathoms [Dall] ; off Culebra Island, West Indies, in 

 390 fathoms Q Challenger'') ; off west coast of Ceylon, lat. N. 

 8° 35' 45", long. E, 81° 17' 45", in 609 fathoms {'Investi- 

 gator''). 



Only a single small specimen 7 millim. long was obtained. 

 It agrees exactly in every detail with the West-Indian 

 example dredged by the ' Challenger,' and I feel no doubt 

 with regard to the correctness of this identification. 



■"to 



Dentalium quadrapicale, Sowerby. 



DerMliumquadrapicnle (flanley, MSS.), Sowerby, Thes. Conch, vol.iii, 

 p. 103, pi. ccxxiii. fig. Gl ; Conch. Icon. vol. xviii. pi. vii. fig. 46. 



Hah. Lat. 9° 34' 57" N., long. 75° 36' 30" E. (depth 

 4('6 fathoms, bottom green mud, temperature 40° F.) ; off the 

 coast of Travancore, South India. 



'J he types of this species are said to have come from 

 Cochin. The specimens obtained by the ' Investigator ' are 

 somewhat larger than the shell figured by Sowerby, the 

 largest specimen having a length of 40 millim. 



Dentalium magnijicum. 



Testa magna, crassa, mediocriter curvata, postice sensim attenuata, 

 antice oblique truncata, undique costis tenuibus numerosis, striis 

 transversis crenulatis, instructa ; fissura angusta, longitudine 

 varia. 



Longit. 115 millim., diam. max. 15. 



Hah, Lat. 8° 40' N,, long. 81° 27' 35" E., 637-800 fathoms 

 (bottom green mud, temperature 41°-42°"25 F.) ; off Trin- 

 comalee, east coast of Ceylon. 



