374 CALL10STOMA. 



have a considerable general resemblance to one another, and to 

 some West American forms. (Dall.) 



Near Havana, 37 fms. ; Sts. of Florida, 200 fms. ; North Carolina 

 to Yucatan, 15-50 fms. 



C. roseolum DALL, Bull. M. C. Z. ix, p. 45 ; ' Blake ' Gasterop. p. 

 366, t. 24, f. 6. 



This very pretty species marches with Trochus pulcher C. B. Ad. 

 (not of A. Ad.), in distribution and general coloration. It differs 

 from it in having rounded, not carinated whorls, in the full, not 

 flattened base, in the absence of the two strong articulated spirals 

 on the periphery, and in having the whorls excavated above instead 

 of nearly flat. C. roseolum has no peripheral articulations of dark 

 red and white or yellow, which are the most prominent features in 

 good specimens of C. pulcher, the latter in this respect recalling C. 

 tampaensis Conrad. C. roseolum differs from C. apicinum in the 

 absence of the line in the throat and the tooth-like process on the 

 columella when adult. When young it has not the narrow chink 

 behind the columella which is present in C. apicinum. The latter 

 as far as observed is always pallid in color except at the apex. 

 The nucleus is reversed. (Dall.) 



C. EUGLYPTUM A. Adams. PL 15, fig. 37 ; pi. 57, fig. 9. 



Shell conical, solid, imperforate ; pinkish with darker flames above 

 alternating with short white stripes or spots radiating from the sut- 

 ures ; spire rather straight conic ; apex dark red ; whorls 6, nearly 

 flat, encircled by numerous narrow finely beaded lira?, the interstices 

 on the lower whorl w r ith minute beaded threads ; there are about 7 

 principal lira? on the penultimate whorl, about the same number on 

 the next earlier ; the last whorl is bluntly angled ; the base uni- 

 colored pinkish, nearly flat, with about a dozen narrow beaded 

 lirse. There is a small white tract around the axis. Aperture 

 quadrate, silvery inside ; outer lip slightly crenulate inside ; col- 

 umella oblique, cylindrical, a little swollen at base. 



Alt. 16s, diam. 17 mill. 



Off Eastern coast of America, in 15-50 fms., /row North Carolina, 

 to Florida, Texas, and Vera Cruz, Mexico. Fossil in Florida Plio- 

 cene. 



Z. euglyptus A. AD., P. Z. S. 1854, p. 38. REEVE, Conch. Icon., 

 f. 17. Calliostoma euglyptum A. Ad., DALL, ' Blake' Gasteropoda, 

 p. 363. 



