352 CALLIOSTOMA. 



less, not perforated, and with a groove-like impression beside the 

 columella ; aperture rhomboidal-orbiculate ; columella arcuate, 

 smooth ; lip simple ; colors arranged in radiating flammules, alter- 

 nately white, strawberry-red, and pale flesh-color, gradually shaded 

 into each other ; on the base the dark or light-red are distributed 

 along the granules in a somewhat articulated manner ; nacreous be- 

 neath. Alt. 9J, diam. 10 mill. (Gould.) 



Tr.jucundus GOULD, Proc. Bost. Soc. N. H. iii, p. 91, 1849; U. 

 S. Expl. Exped., Moll., p. 177, f. 209. 



The excellent description of Gould, given above, corresponds 

 perfectly with a specimen before me. Hutton says that the locality 

 New Zealand, given by Gould, is incorrect. The only shell I have 

 seen is said to come from Rio Janeiro. 



C. SPECIOSUM A. Adams. PI. 16, fig. 2 ; pi. 67, fig. 42. 



Shell pyramidal-conical, imperforate, flesh-colored, variegated and 

 punctate with rufous ; whorls plano-concave, sculptured with trans- 

 verse subgranulate alternately smaller and larger lirse, the granules 

 reddish-brown ; last whorl obtusely angular ; base concentrically 

 grooved ; umbilical region impressed, bounded by a rufous callous; 

 aperture subquadrate ; columella solid, subarcuate, scarcely truncate 

 anteriorly ; lip lirate within, the margin subangulate in the middle. 



(Ad.) 



Moreton Bay ; Pott Curtis, Queensland, Australia, 7-11 fms. 



Z. speciosus AD., P. Z. S. 1854, p. 38. REEVE, Conch. Icon., f. 

 9a, b. T. (Calliostoma) speciosus E. A. SMITH, Zool. Coll. H. M. S. 

 ' Alert,' p. 71. 



Closely allied to C. meyeri Phil, but less angular at periphery, 

 and with an orange columellar streak. Smith (loc. cit.} says : In 

 form this species approaches T. comtus Phil., which however, in 

 addition to difference in color, does not possess the peculiar smooth 

 orange-yellow callosity at the umbilical region, so characteristic of 

 T. speciosus. 



C. RIOENSIS Dall. PI. 67, fig. 76. 



Shell elevated-conical, imperforate, thin, flesh colored, with 

 irregular yellowish longitudinal stripes on the upper whorls and small 

 whitish spots on the periphery, the Iira3 of periphery and base 

 articulated with rufous dots. Spire conic, high, its lateral outlines a 

 trifle concave above ; whorls 8, a little convex ; sutures a little 



