52 BRACHYPODELLA, S.-G. AMPHICOSMIA. 



angular at the outer-basal part; peristome narrowly reflexed. 

 Axis encircled by two subequal, conspicuously serrate lamellae. 



Length 20, diam. 3 mm.; whorls 17. 



Length 19, diam. 3.3 mm.; whorls 19 (spire complete). 



Length 14, diam. 2.3 mm. ; whorls 15. 



Haiti : Sierra Monte Cristi, in the Republic of S. Domingo 

 (Hjalmarson). 



Cyl. hjalmarsoni PFR., Malak. BL, v, 1858, p. 153, pi. 3, f. 

 16-18 ; Monogr., vi, p. 371. CROSSE, J. de C., 1891, p. 145. 



Belated to B. salleana, but distinct by its smaller size, slen- 

 der form and finer striation. It varies widely in size and 

 number of whorls. Pfeiffer calls it " rose-whitish/' but in 

 the specimens before me, collected by Hjalmarson, the rose 

 color has faded. 



8. B. TRUNCATULA (Lamarck). PL 3, figs. 16-21. 



Shell cylindric, the upper third tapering to a wide or nar- 

 row truncation ; thin, flesh-colored, the lower whorls paler. 

 Surface lusterless, sculptured with strong, thread-like, straight 

 rib -stria, separated by intervals of three or four times their 

 width on the lower whorls, more crowded on the upper ; some 

 of the stricz connected at their lower ends in pairs by whitish 

 bosses above the suture, and more rarely some are connected 

 at their upper ends also. Whorls but slightly convex, the 

 last free in front, flattened or even concave above, conspic- 

 uously swollen on the right side of the neck, the base pinched 

 into a very strongly projecting keel. Aperture irregularly 

 rounded or squarish, often more or less distinctly angular at 

 the base and the outer side; peristome reflexed. Axis en- 

 circled by two subequal lamellae, the edges of which are very 

 minutely crenulate in the median and upper whorls, nearly 

 smooth in the lower. 



Length 18, diam. 3.3 mm. ; whorls 13%. 



Length 16.3, diam. 3.2 mm.; whorls 14y 2 . 



Length 12.8, diam. 3.2 mm. ; whorls 10. 



Length 11, diam. 2.8 mm.; whorls 10. 



Haiti: Port-au-Prince (Mrs. W. Klatte, H. Rolle, J. B. 

 Henderson and C. T. Simpson) ; eight miles west of the same 

 place (Henderson). 



