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 

 up{)cr whorls. 



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

 Mr. Cuming's Cabinet, as the Buccimim Iijratuni^ Martyn (Marex 

 Gm.~), and the Murex glomus cercvs of Cliemnitz, 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 different species. 



OCllllS TROPIION, MONTFORT. 1810. 



Shell fusiform, varices numerous, lamelliform, or laciniated ; 

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

 the left ; columella smooth, arcuated. 



Trophon clathratus. 



Fig. 198. 



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

 ous sharp raised plaits ; aperture rounded ; canal curved. 



Murex cinthmtiis, Lin. &c. 



Murex Bamffiiis, Donovan, Brit. Shells, v. pi. 169, fig. 2. — Maton and Rackett, Lin. 



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

 Fusus Bainffitis, Flemivg, Brit. Anim 351. — Brown, Cnnch. of Great Brit. &c. pi. 47, 



fig. 1. — Gould, Inv. 1st cd. 289, fig. 198. -De Kay, N. Y. Moll. 148, pi. 36, fig. 



339. 

 Trophon clathratus, Stimpson, Check Lists, 6. 



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

 forming an elevated spire ; suture deeply defined. Tlie 

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

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

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

 whitish color, which become rounded into brownish ribs by 

 age ; aperture less than half the length of the shell, rounded- 

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

 the aperture ; lip sharp, direct, or rcflexed, according to the stage 

 of growth ; aperture brown. Length, half an inch ; breadth, nine 

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



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

 er^ ; Nova Scotia ( WUlis) . 



