220 DRYM.EUS, SOUTH AMERICAN. 



the shell ; peristome broadly expanded, scarcely reflexed, white, 

 the terminations joined by a very thin callus, right margin regu- 

 larly arcuate, columellar margin dilated, reflexed above, somewhat 

 sinuous, half covering the umbilicus. Alt. 31, diam. 12 mill. 



(Hidalgo). 



Baeza, Ecuador (Martinez). 



Bulimus baezensis HIDALGO, Journ. de Conchyl., 1869, p. 189 ; 

 1870, p. 48, pi. 1, f. 3 ; Viaje al Pacifico, p. 75, pi. 7, f. 11, 12. 



Very variable in color pattern. Hidalgo mentions the following 

 variations : (1) Shell with bands and spots confluent (yellow, orna- 

 mented with subundulating brown streaks) ; (2) Pale yellow, 

 banded with white at suture and umbilicus ; (3) Uniform whitish. 



D. ^EQUATORIANUS (Smith). PI. 36, fig. 45. 



Shell umbilicate, ovate acuminate, thin, very minutely spirally 

 striated, and sculptured with growth-lines ; buff-white longitudinally 

 streaked with rather wide and somewhat lightning streaked zig- 

 zagged black-brown stripes. Spire conic, the apex rather acute ; 

 whorls 6, little convex, the last large, somewhat inflated, ascend- 

 ing a short distance in front. 



Aperture oval, pale buff inside, with pellucid streaks, a little ex- 

 ceeding half the total alt. of the shell ; peristome thin, broadly 

 expanded, rose colored outside and within ; columellar margin 

 broadly reflexed. Alt. 26J, diam. 11 ; aperture 14* mill, long, 9? 



wide. (Smith). 



Ecuador. 



Bulimus (Drymceus) cequatorianus E. A. SMITH, P. Z. S., 1877, p. 

 363, pi. 39, f. 7. 



The species here described has been confounded with B. fucatus 

 of Reeve, and was so labelled in the Cumingian collection. The 

 type of that species, with the majority of all the others described in 

 the late Mr. Lombe Taylor's collection having been most liberally 

 presented to the British Museum by Mrs. L. Taylor, has enabled me 

 to compare the two forms ; and certain differences are observable 

 which appear sufficiently constant to distinguish them. 



In the first place, Reeve's species is from New Grenada, and the 

 present one from Ecuador. It is also larger than the former, has 

 the body whorl more inflated, the aperture is longer than half the 

 entire length of the shell, whereas it is less in fucatus; the peristome 

 is more inflated, and the coloration is different. (Smith). 



