396 CALLIOSTOMA. 



T. striatus Linn. Syst. Nat. xii, p. 1230. — And of most authors. — 

 T. parvus Da Costa, Brit. Conch., p. 41.^ — T. conicus Donovan, 

 Brit. Sh., t. 155, f. 1. — T. depidus Desh., Exped. Sci. de Moree, 

 p. 140, t. 18, f. 23-25.— r. gravesi Forbes, Rep. JEg. Invert., p. 137. 

 — T. sartorii Aradas, tede Philippi. — T. parvulus Phi!. Brus., 

 Conch. Dalni. ined., ]). 25 (and parviilvs Phil., Enuin. Moll. Sicil. 

 i, p. 155, t. 25, f. 11 ? a fo.ssil species). — Trochus littoralis Brusina 

 in sched., /. c, p. 25. — Jujuhinm cequlstriaius Monts., Norn. Gen. e 

 Spec, p. 47 (1884).— T. cequistriatus Monts. B., D. & D., Moll, du 

 Rouss., p. 368, t. 43, f. 21, 22. — T. smaragdimis Monts. Dautz, Journ, 

 de Conchyl. 1883, p. 307. — Jiijublnus smaragdinus Monts., Nom. 

 Gen. e Spec, p. 46. — T. striatus var. eleuchoides Issel, Crociera del 

 Volante, p. 436, figs. 6, 7, 1878. — J. elenchoides Monts., Nom. Gen. 

 e Spec, p. 47 (1884).— T. elenchoides Monts., D., D. & D., Moll, du 

 Rouss., p. 368, t. 43 f. 20, 25. — Tr. (ZizijpJuims) striatus Linne, Wat- 

 son, Challenger Gasterop., p. 56. 



Distinguished from C. exasperatum, a species of nearly the same 

 size and outline, by its finer more numerous spiral stride, less strongly 

 truncate columella, etc. 



The principal varieties are the following: 



Var. DEPICTUM Deshayes. 



Shell elevated, with spiral strife, a large peripheral ridge, and fine 

 strire of increment, the latter crossing the spiral sculpture, render the 

 surface visiblv granulose. Color greenish iridescent, with longitu- 

 dinal hroW'U fiames. 



Var. ^quistriatum Monterosato. 



Shell solid, broad at base, without a noticeable peripheral rib at 

 carina or above sutures; surface traversed by numerous spiral 

 liriB, the interstices finely obliquely crispate-striate ; base with 

 about 7 concentric ribs, and outside of these a number (about 5) of 

 minute close ones; color light gray, with longitudinal narrow black 

 lines, sometimes interrupted. 



Var. smaraodinum Monterosato. 



Quite conical, elevated, the whorls plane, the last decidedly 

 angular at periphery; surface with numerous spiral smooth riblets, 

 and a peripheral supra-sutural rib divided into two by a central 

 groove; color of earlier whorls white, with large blotches and dots 

 of reddish purple ; the rest of the whorls and the base are a beautiful 



