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. \. T. depictus DESK., Exped. Sci. de Moree, 

 p. 140, t. 18, f. 23-25. T. graved FORBES, Eep. ^Eg. Invert., p. 137. 

 T. sartorii ARADAS, teste Philippi. T. parvulus Phil. BRUS., 

 Condi. Dalm. ined., p. 25 (and parvulus PHIL., Euiim. Moll. Sicil. 

 i, p. 155, t. 25, f. 11 ? a fossil species). Trochus littoralis BRUSINA 

 in sched., /. c., p. 25. Jujubhtms cequistriatus MONTS., Nom. Gen. e 

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

 Rouss., p. 368, t. 43, f. 21, 22. T. smaragdinus Monts. DATTZ, Journ. 

 de Conchyl. 1883, p. 307. Jujubinus smaragdinus MONTS., Nom. 

 Gen. e Spec., p. 46. T. striatus var. elenchoides 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. (Zizyphinus) striatus Linne, WAT- 

 SON, Challenger (Jasterop., p. 56. 



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

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

 truncate columella, etc. 



The principal varieties are the following: 



Var. DEPICT UM Deshayes. 



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

 stria3 of increment, the latter crossing the spiral sculpture, render the 

 surface visibly gramilose. Color greenish iridescent, with longitu- 

 dinal brown tiames. 



Var. ^EQUISTRIATUM Moiiterosato. 



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

 carina or above sutures ; surface traversed by numerous spiral 

 lirse, 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. SMARAUDINUM Moiiterosato. 



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 



