TROPHON. 377 



general aspect. It is subject to but little variation ; the most im- 

 portant one is, that a third rib is found upon one or more of the 

 upper whorls. 



[Reeve has figured an undoubted specimen of this species, from 

 ^Mr. Cuming's Cabinet, as the Buccinuni Iijratum, Martyn {Murex 

 Gm.}, and the Murcx glomus cercus of Clienmitz, which the latter 

 author gives as coming from King George's Sound, New Holland. 

 His figure is much larger and more ventricose, and is beyond ques- 

 tion a diifercnt S})ecies. 



Ociiiis TROPIIOIV, MoxTFORT. 1810. 



Shell fusiform, varices numerous, lamelliform, or laciniated ; 

 spire prominent ; aperture ovate ; canal open, usually turning to 

 the left ; columella smooth, arcuated. 



Trophon clatliratus. 



Fig. 198. 



Shell small, brownish ; whorls six, ventricose, ribbed lengthwise with numer- 

 ous sharp raised plaits; aperture rounded; canal curved. 



Mnrex clatliratus, Lin. fcc. 



Murcx Damffius, Doxovan, Brit. Shells, v. pi. 169, fig. 2. — Maton and Rackett, Lin. 



Trans, viii. 149. —Montagu, Test. Brit. Suppl. 117. 

 Fusuf< Dninffius, Flemixg, Brit. Anim. 351. — Bkown, Conch, of Grent Brit. &c. pi. 47, 



fi.ir. 1. — Gould, Inv. 1st cd. 289, fig. 198. — De Ivav, N. Y. Moll. 148, pi. 36, fig. 



339. 

 Trophon clulhratus, Stimpson, Check Lists, 6. 



Shell small, light brownish, composed of six rounded whorls, 

 forming an elevated spire ; suture deeply defined. The 

 stages of growth are distinctly marked by an expansion ^'s*^^^- 

 of the lip, so as to cover the surface of the shell, length- 4 

 wise, with from fifteen to twenty sharp, raised folds, of a i^. 

 whitish color, which become rounded into brownish ril)s by W^ 

 acre ; aijerture less than half the lenath of the shell, rounded- ^- '''"'^' 

 ovate, terminating in a curved canal, about half as long as 

 the aperture ; lij) sharp, direct, or reflexed, according to tlie stage 

 of growth ; aperture lu'own. Length, lialf an inch ; breadth, nine 

 fortieths of an inch ; divergence, thirty-three degrees. 



Occasionally found in the stomachs of fishes. Eastport ( Coop- 

 er} ; Nova Scotia {Willis). 



