18 DRYMJEUS, WEST INDIES. 



var.f W. G. BINNEY, Proc. Acad. N. S., Phila., 1874, p. 53 (jaw 

 and dentition). Bulimulus (Drymceus) vincentinus Pfr.,E. A. SMITH, 

 Journ. of Conch, viii, p. 244 (Oct. 1896) ; Proc. Malac. Soc. Lond. 

 i, p. 305. Drymaus vincentinus Pfr., var. W. G. BINNEY, Ann. N. 

 Y. Acad. Sci. iii, p. 120 (jaw and radula of Tobago specimens). 

 Bulimulus multifasciatus Lam., GUPPY, Proc. Scient. Asso. Trini- 

 dad, 1866, p. 17 ; Ann. Mag. N. H. (3), xvii, 1866, p. 49 (exclusive 

 of var. imperfectus) Bulimus immaculatus C. B. Ad., GUPPY, 

 1. c. p. 49, not of C. B. Adams. 



The long, narrow, oblique aperture, decidedly expanded lip, effuse 

 at base, and the abrupt backward bend of the columella below s are 

 characteristic. 



Some specimens show a varix or two, caused by continuation of 

 growth after an expanded peristome had been formed. Like many 

 allied species, two forms occur: a five-banded, the typical vincentinus 

 of Pfeiffer, and a baridless, yellowish-white, which may be known as 

 form purissimus. Bland writes of the experiences of Gill and Guppy 

 as follows : " The banded form lives on trees and is found through- 

 out the colony, being perhaps more common at Monos Island. The 

 yellowish-white, bandless variety is found on the tops of trees in the 

 forests over a great part of the island. It is very abundant in some 

 localities, particularly in some gardens at Port-of-Spain." 



Pfeiffer gave the locality St. Vincent, upon whose authority does 

 not appear. It has not been found there by several naturalists who 

 have collected land snails on the island, and there is ground for 

 Bland's belief that it does not occur. D. vincentinus has also been 

 reported from the mainland in Venezuela. This too requires con- 

 firmation. The Tobago form (figs. 5, 6, 7) is rather smaller and 

 more slender than that from Trinidad, and the bands, when present, 

 are wider. Binney examined the radula of a specimen from this 

 island. 



Var.Jlavotmctus Pilsbry, n. v. PL 12, fig. 11. 



Shorter, more ovate, the spire short, whorls hardly 6, almost flat, 

 the sutures not impressed. Aperture very large; lip broadly ex- 

 panded below. Glossy, white, with the three earlier whorls and a 

 basal patch pale yellow. 



Alt. 28, diam. 14, length of aperture nearly 16 mill. 



Trinidad. 



Somewhat like D. eurystomus Phil, 



