TROPHON. 379 



slightly recurved beak, irregularly wrinkled by the transverse ter- 

 minations of the ribs ; right lip thickened or sharp, according as 

 it is or is not terminated by a rib ; throat light chestnut-brown, 

 like the exterior of young shells. Length, one and three fourths 

 inches; breadth, four fifths of an inch; divergence, forty-five de- 

 grees. 



Of six specimens in my possession, four belong to Colonel Tot- 

 ten, who kindly sunt them to me foi- description, one was from Dr. 

 J. B. Forsyth of Sandwich, all of which were from the Bank 

 Fisheries ; and one was taken from a fish caught in Massachu- 

 setts Bay by Mr. Couthouy. Halifax ( WiUis) ; fossil, Montreal 

 (^Daivson) ; whole coast of Greenland {Ha/jcs) ; Belfast Bay. 



This shell is remarkable for its sharp elevated ribs, as if the sur- 

 face were raised by flakes arranged like the ribs on most species of 

 Sea/aria. It is very much like the Fiisus Bamffius^ but, on the 

 whole, I think it is different, inasmuch as we have that species with 

 its undoubted characters, and the two never seem to run into each 

 other. The large figure of Donovan ("■ Brit. Shells," pi. IGU, hg. !_), 

 given as Murex Banijfius, represents our shell. 



It is allied to M. Magellanicus ; and the figure in " Encyc. 

 Meth." pi. 438, fig. 4, referred to as M. lyratus, Lamarck, bears 

 a distant resemblance to it. 



Trophon muricatus. 



Shell slender, yellowish ; Avhorls very tumid, with about ten conspicuous folds 

 and elevated revolving lines; beak long and straight. 



Murex muricatns, Montagu, Test. Brit. 2G2, pi. 9, fig. 2. — Turton, Conch. Diet. 9.5. — 

 Maton and Rackett, Lin. Trans, viii. 149. — Dillwyn, Catal. "46. — Wood, In- 

 dex, pi. 27, fiff. 1.38. — Fleming, Brit. Anim. 351. 



Flisus miiricatus, Brown, Conch, of Great Brit. &c. 48, fig. 28. — Gould, Inv. 1st ed. 

 293. 



Shell elongated, slender, yellowish-white, or orange, composed of 

 seven very convex whorls, the suture deeply defined, forming an 

 elevated, pointed spire ; these are traversed by about ten broad, 

 rounded folds or undulations which are crossed V)y coarse, elevated, 

 revolving, glossy lines, producing a rough, granulated, almost tuber- 

 cular surface ; aperture broad oval, terminating in a long, straight 

 canal, which together equal half the length of the shell ; outer lip 

 rendered jagged by the revolving lines, and sometimes greatly thick- 



