TRITON. 9 



spout, and the shell suspended by a wooden hook over the fire. 

 Mr. Adams says that this rude vessel was adopted several times 

 for the convenience of his party, and answered its purpose 

 admirably. 



The species of Triton being numerous, several attempts have 

 been made to separate them into generic or subgeneric groups ; 

 the most successful being the arrangement of Messrs. H. and A. 

 Adams. Two of these groups, however, Simpulum and Cabestana, 

 are so closely related that I think Kobelt has very judiciously 

 united them. Priene is the connecting form approximating 

 Triton and Eanella ; whilst in the latter genus species of the 

 group Lampas recall Triton. 



A very excellent catalogue of the genus has been published by 

 Kobelt, the arrangement of which I mainly follow ; adding, how- 

 ever, some additional species, making about one hundred and fifty 

 in all. Kobelt has monographed the genus in Kiister's Conchylien 

 Cabinet and there are also monographies by Reeve and Kiener 

 in their respective Iconographies. 



Subgenera. 

 SIMPULUM, Klein. Shell fusiform, whorls nodosely ribbed; outer lip 



thick, plicate-dentate internally. Operculum with apical nucleus. 

 CYMATIUM, Bolten. Whorls triangular ; aperture longer than the spire ; 



outer lip dentated internally. Operculum with apical nucleus. 

 GUTTURNIUM, Klein. Shell pyriform, subturreted, canal long, narrow. 



Operculum with submarginal initial point, near the middle of the 



inner margin. 

 EPIDROMUS, Klein. Shell with long, generally curved spire ; aperture 



small and canal very short. Operculum triangular, with submarginal 



nucleus. 

 PRIENE, H. and A. Ad. Shell ventricose, thin, cancellated or plicated ; 



canal short. Operculum with apical initial point. 



( Typical.) 

 Genus TKITON, Montf. 

 T. TRITONJS, Linn.- PL 1. fig. 1 ; pi. 3, fig. 1(5 ; pi. 4, fig. 25. 



Whitish or yellowish, variegated with semi-lunar markings of 

 chestnut or chocolate color ; spire pink towards the apex ; orange- 

 red within the aperture ; columella dark chocolate crossed by 

 numerous white wrinkles or plaits ; outer lip denticulated at the 

 2 



