214 DRYM^EUS, SOUTH AMERICAN. 



Aperture oblong-ovate, a trifle oblique, inside spotted and verm- 

 iculate-striated with brown; outer lip regularly arcuate, narrowly 

 expanded above, becoming broadly so below, white with an internal 

 border of faint pinkish-purple ; columellar lip vertical, subsinuous, 

 broadly dilated ; columella pink-purple passing above into a long, 

 convex fold ; parietal wall with a thin purplish film. Alt. 34.3, 

 diam. 15 ; alt. of aperture 18 mill. 



Near Carthagena, U. S. of Colombia (J. H. Gibbon). 



Bulimus gracilis LEA, Trans. Amer. Philos. Soc., vi, p. 85, pi. 23, 

 f. 102 (June 15, 1838 ; see Proc. Amer. Philos. Soc., i, 1838, p. 19) ; 

 Obs. Gen. Unio ii, p. 85, pi. 23, f. 102. PFR., Monogr., ii, p. 104. 

 Not Bulimus gracilis Lea, Proc. Amer. Philos. Soc., i, p. 173 (March 

 20, 1840). Not Bulimus gracilis Hutton, Journ. Asiatic Soc. Ben- 

 gal, iii, p. 93 (1834). 



Figures 16, 17, represent the type, 105, 154 U.S. Nat. Mus., from 

 which the above description is taken. Reeve's fig. 601c, " B. spec- 

 tatus" is, in my opinion, a rather highly colored example of gracilis 

 see fig. 15. The vaulted space behind the columellar lip is about 1? 

 mill. wide. 



D. DACOST^E (Sowerby). PI. 43, figs. 77, 78. 



Shell narrowly but profoundly umbilicated, elongated, shining, 

 irregularly striated ; pale tawny flesh-colored, with wavy longitu- 

 dinal streaks and two girdles of small black-brown spots. Spire 

 convex-conic, the apex acute ; suture lightly impressed. Whorls 6, 

 little convex, the last about as long as the spire, attenuated at base ; 

 columella oblique, reflexed. Aperture subvertical, roseate within, 

 showing the spots through ; peristome simple, slightly reflexed. Alt. 

 26, diam. 11 mill. (Sowb.~). 



Bogota, U. S. of Colombia (Da Costa coll.). 



Bulimulus da-Costce G. B. SOWERBY, P. Z. S., 1892, p. 297, pi. 23, 

 f. 15, 16. 



I have as yet seen only a single specimen of .this species, which 

 may be found to vary as much as the last (koppeli). It seems how- 

 ever to be distinct from any hitherto known. (G. B. S.). 



D. MURRINUS (Reeve). PI. 40, figs. 10, 11. 



Shell fusiformly ovate, scarcely umbilicate, whorls 6, convex, 

 smooth, polished, last whorl somewhat produced and attenuated at 

 the base. Aperture rather oblong, slightly siuuated at the lower 



