CALLIOSTOMA. 337 



T. meyeri PHIL., Zeitschr. f. Mai. 1848, p. 101 ; Conchyl. Cab., p. 

 279, t. 41, f. 4. FISCHER, Coq. Viv., p. 76, 1. 17, f. 2. Tr. armillatus 

 Wood, KIENER, Spec, et Icon., t. 17, f. 2 (not armillatus Wood). 

 Ziziphinus armillatus Wood, REEVE, Conch. Icon., f. 19. Tr. levis 

 HOMBR. et JACQ., Voy. an Pole Sud, t. 14, f. 17. 18 (not T. Icevis 

 Wood, or Chemn.). 



The strtiightly conical form, flat base, indented around the axis, 

 and the details of sculpture, easily separate this from allied forms. 



C. STEPHANEPHORUM Watson. PI. 16, figs. 1, la. 



Shell high, conical, tubercularly carinate and lirate, ruddy, with 

 a coronated apex, glossy smoothish flatly conical whitish base, and 

 large quadrangular mouth. Sculpture: longitudinals the whole 

 surface is obliquely scored with broadish well-parted little-raised 

 rounded striae on the lines of growth, on the base these are feebler 

 and less regular. Spirals : on each whorl there are about 7 strongish 

 equal threads, which are somewhat sparsely dotted with low flat 

 tubercles, whose greatest breadth is in the height of the shell ; each 

 whorl round its base is keeled by a stronger prominent triangularly 

 acute substellately tubercled thread ; above this lies another thread 

 a little stronger and more prominent than the normal spiral threads 

 above; between these two stronger threads is a small shallow 

 furrow, which is perpendicularly (not obliquely) striate ; round the 

 base and within the carinated periphery is another obtuse angled 

 tubercled keel ; on the base are some 18 or 20 flattened threads ; 

 toward the rim these are very feeble and are not very distinguish- 

 able from the 2 or 3 weaker threads which occupy the wide intervals 

 between ; towards the middle space of the base the stronger threads 

 become more marked and also faintly tubercled, the interstitial ones 

 tend to disappear ; close into the pillar, however, some very faint 

 threads again appear in the interstices. Color pale ruddy, with 

 some suffused deeper spots, and flecked on the tubercles with rich 

 bright chestnut. Spire conical, with straight profile lines. Apex 

 rather large, blunt, and coronated by the prominence of the carinal 

 tubercles ; it is rather strongly radiatingly striated ; the extreme 

 tip is very minute and is immersed ; it is rough, not polished or 

 glossy. Whorls in all *9, of very regular but somewhat rapid in- 

 crease ; they are flatly conical, being neither convex nor concave ; 

 the last is largish, and is very sharply angulated at the periphery. 

 Suture linear, and only recognizable from the projecting keel above it. 

 Mouth largish, quadrangular. Outer lip thin, flat on the side and 



