BULIMULUS-PROTOGLYPTUS. 89 



-convex; sutures well-impressed, the last hardly descending; last 

 whorl regularly convex and inflated. 



Aperture subvertical, ovate, somewhat over half the length of 

 shell, white inside ; peristome unexpanded, rather blunt, the outer 

 margin regularly arched, columella slightly concave, its margin 

 broadly reflexed, with a salient angle at junction of reflexion with 

 basal lip ; parietal callus moderate ; umbilicus deep and rounded. 



Alt. 32, diara. 20 ; alt. of aperture 18 mill. 



Province of Bahia, Brazil (v. d. Busch). 



Bulimulus pachys PILSBRY, Proc. Acad. Nat. Sci. Phila., p. 20, 

 Peb. 23, 1897. 



The type is a faded, decolored specimen, showing traces of a 

 median white girdle, brown above and slightly so below it, as in B. 

 durus Spix. It is considerably like B. heterotrichus in size and 

 form, but is unlike that species in the Jess oblique aperture with 

 blunt, unexpanded outer lip, the differently formed columella and 

 the costulate apical whorls. In general aspect it somewhat resem- 

 bles Binney's B. patriarcha. The columellar lip is pressed in 

 above, unlike that of B. durus, which is, besides, a smaller spe- 

 cies. 



B. EUDIOPTUS Ihering, n. sp. PI. 14, figs. 16, 17. 



Shell small, ovate, narrowly perforate, very thin and fragile, light 

 chestnut colored ; somewhat transparent, showing the columella 

 through the shell, shining. Sculpture of slight, inconspicuous 

 growth- wrinkles and very delicate cuticular spiral striaB. Spire 

 short, the apex rather obtuse, nepionic whorls uith very fine, close 

 longitudinal riblets, the intervals densely and lightly scratched 

 spirally. Whorls 4f, rather convex, the last inflated. 



Aperture ovate, slightly more than half the length of the shell, 

 colored within like the outside ; outer lip thin and fragile, unex- 

 panded ; columellar lip narrowly reflexed above, nearly covering 

 the narrow umbilical perforation; columella concave. 



Alt. 10'5, diam. 66 ; alt. of aperture 5'5 mill. 



Sao Paulo, Brazil (Dr. H. von Ihering). 



More delicate and fragile than any other known member of this 

 or related subgenera, being comparable in this respect to the Eudi- 

 optus species. 



