142 TROPHON. 



very like that species ; but appears to be more closely related to 

 T. Barvicensis, of which it may prove to be a variety. 



T. TRIANGULATUS, Carpenter. 



Small, thin, white, wide behind, narrow before; two nuclear 

 and four normal whorls, the latter shouldered ; rapidly narrow^ 1 

 to the front, with long, arcuated canal ; varices about seven, 

 acutely laminated, forming open, radiated, somewhat curved 

 spines around the shoulder ; there is an obsolete angle or line on 

 the periphery. Length, *35 inch. 



Catalina 1*1., Gal., 60 fins. 



Said to be related to T. muricatus, Hinds. 



I have not seen this species. Mr. Stearns writes me that a 

 specimen in the California State collection, about 1 inch long, 

 and so labelled, is the young of Chorus Belcheri, Hinds. 



T. SUPPOSITUS, Gld. 



Shell pyrifonn, turreted, thin, dirty white, with remote, erect 

 laminae ; whorls six, convex, shouldered, the last bulbous, pro- 

 tracted in front into a thin, recurved canal. Aperture ovate, 

 three-fifths the length of the shell, columella porcellanous. 



Length 30 mill., diam. 15 mill.; length of aperture, 20 mill. 



H,ib. ? 



I know nothing of this species ; the description does not dis- 

 tinguish it from T. clathratux. 



T. CONCINNUS, A. Ad. 



Ovately fusiform, solid, cinereous ; decussated by nodulous 

 concentric lines and thin longitudinal plicae; whorls five, sub- 

 angulated in the middle ; spire acutely conical ; aperture narrow, 

 ovate, narrowed in front into a contorted canal ; columella arcu- 

 ated, smooth. 



Japan, 35 fathoms. 



This little, neatly-sculptured species resembles in some par- 

 ticulars T. crispus of Gould ; but the transverse line are nodulous 

 and crowded, and the longitudinal laciniated plica 1 are close to. 

 gether, whereas in T. crispus the whorls are finely cancellated. 

 The above is a copy of the original description ; I do not know 

 the species. 



