BULIMUS. 133 



nalibus ornata ; sutura impressa ; spira elongato-conica, acuta ; apex 

 punctulata ; anfr. 6 convexiusculis, lineis minutissimis volventibus ornati, 

 superi striati, ultimus inflatus, ad marginem superam peristomatis obtu- 

 sissime carinatus ; apertura ovata, partem testae dimidiam suba3(juans ; 

 perist. simplex, acutum, maryine columellari reflexiusculum, perfora- 

 tionem pene occultans. 



SYNONYMS AND REFERENCES. 



Bidinms Dormani W. G. Binney, Proc. Phila. Acad. Nat. Sc. 1857, p. 188; Notes, 

 p. 8. 



DESCRIPTION. 



Animal not observed. 



Shell perforated, rather heavy, shining, elongated-conic ; 

 white, with several regular revolving series of interrupted, 

 perpendicular, reddish-brown patches ; suture distinctly 

 marked ; apex punctured ; whorls 6, rather convex, marked 

 with numerous very fine revolving lines; upper whorls 

 striate ; last whorl full, with a hardly perceptible obtuse 

 carina at the upper extremity of the peristome. 



Length, 29; diameter, 12 millimetres. 



Geographical Distribution. Found at several spots in 

 the vicinity of St. Augustine, Fla., by O. S. Dorman, 

 Esq. 



Remarks. The only described species with which this 

 shell can be confounded is B. Floridianus Pfr., Proc. Zool. 

 Soc. London, 1855, p. 330. Though I have never seen 

 Dr. PfeifFer's shell, I should consider it nearly allied, though 

 distinct. That species wants the minute revolving lines, 

 the punctured apex, and striate upper whorls, which char- 

 acterize B. Dormani, is a smaller shell, and has a different 

 marking, being furnished with opaque whitish blotches as 

 well as reddish patches ; the latter also do not extend to 

 the body whorl. 



Since writing the above, I have received a drawing of 

 the type of B. Floridianus which removes all doubt of its 

 being identical with this species. 



