24 AMERICAN MARINE CONCHOLOGY. 



Murex aruamis, Linn. (Misnomer), Syst. Nat., edit. xii. 1222. 1766. 



Fulgur eliceans, Montfort, Conch. Syst., ii. 503, fig. 1810. 



Pyrula carica, Lamarck, An. saus Vert., vii. 138. 1823. 



Pyrula caiidelabrum, Lamarck, ibid. 



Pyrula Kieneri, Philippi. 



Busycon sjnnosum, Conrad, Proc. Acad. Nat. Sci., Philad. 583. 1863. 



Busycon gibbosum, Conrad, ibid., 263. 1863. 



Shell large, solid, pear-shaped ; whorls six, flattened at the sum- 

 mit and the angle raised into a series of compressed tubercles, 

 generally'' about nine in number, on each volution. Young shell 

 striate within the aperture, striae becoming obsolete when full 

 grown. 



A figure of the egg-case is given for comparison watli that of 

 S. cnnaliculatus. 



Fig. 31 represents a reversed shell of this species from the 

 soutliern coast, where it rarely occurs. It is the var. of pe?'ue/'st(s 

 of Kiener, and the Kieneri of Philippi, gibbosus of Conrad. 



Cape Cod, Massachusetts, to Florida. 



4. S. PERVERSUS, Linnaeus. Fig. 32. 



(Murex.) Syst. Nat., edit. 12, p. 1222. 1766. 

 Shell sinistral, pyriform, ventricose, canal elongated ; whorls 

 encircled with slightly waved rather distant strife, angulated round 

 the upper part, coronated round the angle with tubercles indicating 

 slight folds of the surface. Yellowish banded or longitudinally 

 streaked with brown ; interior white. 



Southern Coast. 



Genus FICTJS, Klein. 

 Tent. Method. Ostracol. 1753. 

 1. S. PAPYRACEUs, Say. Fig. 33. 



{Pyrula.) Journ. Philad. Acad., ii. 238. 1822. 



Shell inflated, thin ; spire not elevated ; suture slightly impressed, 



not shouldered, yellowish with small rufous spots; within dull 



fulvous ; Avhorls with numerous spiral striiB, which are alternately 



larger, crossed by smaller strite. 



Georgia to West Indies. 



Genus FUSUS, Bruguiere. 

 Encyc. Meth., 1. 15. 1789. 

 Shell fusiform; spire manj-'-whorled ; canal straight, long; oper- 

 culum ovate, curved, nucleus apical. 



There arc nearly two hundred species ; distribution universal. 



