50 BULIMULUS-ANTILLEAN. 



sometimes with a pale peripheral line. Spire conic, the apex ob- 

 tuse, nepionic whorls smooth in most adult shells, but the young 

 show an excessively fine, shallow pit-reticulation. Whorls 5 -6, 

 quite convex, the sutures deeply impressed. 



Aperture ovate, contained about 2 times in length of shell ; outer 

 lip regularly arcuate, acute, thin and unexpanded ; columellar lip 

 dilated above partly over the well-marked umbilicus. 



Alt. 14, diam. 6-7 mill. ; alt. of aperture 6 mill. 



Alt. 9'5, diam. 5 mill. ; alt. of aperture 4'2 mill. 



Alt. 10, diam. 5*7 mill.; alt. of aperture, 4*5 mill. 



Havana and its environs, Cuba (Poey, Arango, Baker, et a.) ; 

 New Providence, Bahamas (Swift, Bland, Bendall). 



Bulimulus sepulcralis POEY, Memorias sobre la Hist. Nat. de 

 Cuba, ii, p. 203, pi. 12, f. 27-29 (B. urinarius Poey mss. to some 

 collectors) ; also note 25, on p. 453. PFE. in Conchyl. Cab., p. 162, 

 pi. 49, f. 3, 4 ; Monogr. iii, p. 438. ARANGO, Contrib. Fauna Malac. 

 Cubana, p. 80. Bulimulus sepulcralis PFR., Mai. Bl., 1854, p. 195. 

 BENDALL, Proc. Malac. Soc. Lond., i, p. 293. 



This species is closely allied to the forms of Yucatan and Central 

 America, not to the group inhabiting from Trinidad to Haiti. It is 

 undoubtedly a comparatively recent importation from the middle 

 American mainland, and its distribution suggests that its presence 

 in the Antilles may date only from the early days of Spanish com- 

 merce iii America. It presents differences from the closely allied 

 B. unicolor which are probably specific, though not very conspicu- 

 ous. B. sepulcralis seems to be singularly restricted in distribution, 

 being found only in the immediate vicinity of Havana, especially in 

 cemeteries and on fortification walls. Bendall says it is abundant 

 on damp ground at New Providence. It occurs near Nassau. 



New Providence specimens are sometimes larger than any of the 

 extensive series I have seen from Cuba 16 mill, long, and the 

 spire is generally more straightly conic, turrited; whorls 6j. 



Central American Species. 



The forms of this region are closely allied to those of Colombia 

 and to B. sepulcralis of Cuba. Apical sculpture generally very 

 indistinct, occasionally with spiral striae as well as longitudinal 

 -wrinkles ; but these are more pronounced in some of the South 

 American forms ; surface nearly smooth, with faint spirals in some 

 species. 



