140 TBTTNCATELLID.S:. 



Truncatella scalariformis, Kiist. Mon. p. 15. n. 12. 



H. and A. Adams, Gen. rec. Moll. ii. p. 311. 

 Truncatella truncatula, var., Anton, Verzeichn. p. 62. 



Hah. Isle of Annaa, at the roots of palms on the sea-shore 

 (H. Cuming). 



13. Truncatella Barbadensis. 



Shell sublimate, cylindrical, imperceptibly attenuated towards 

 the apex, rather solid, silk-shining, rufous horn-coloured, regu- 

 larly sculptured with crowded, obtuse, nearly rectilinear ribs ; 

 suture deep; remaining whorls four and a half, very convex, 

 slowly increasing, the last furnished with a whitish basal crest, 

 which surrounds the peristome anteriorly ; aperture perpendi- 

 cular, ovate, roundish above, slightly effused at base ; peristome 

 continuous ; right margin expanded and slightly reflected, much 

 curved, coluniellar margin rather adnate. Length 6^, breadth 

 2 mill. 



Truncatella Barbadensis, Pfr. in Proc. Zool. Soc. 1856 ; Mon. 

 Auric, p. 192. 



Sab. Barbadoes. 



14. Truncatella bilabiata. 



Shell subrimate, cylindrical, slender, solid, opake, fuscous, 

 faintly ribbed ; ribs slightly arched, elevated, obtuse, as broad 

 as the spaces between them ; suture deep, simple ; remaining 

 whorls four and a half to five, convex, the last scarcely longer 

 than the others, somewhat compressed and callous in front; aper- 

 ture perpendicular, ovate, imperceptibly angled above; peri- 

 stome double ; the outer one white, callous, spreading, con- 

 tinued into the basal crest ; inner peristome continuous, shortly 

 produced. Length 5|, breadth If mill. 



Truncatella bilabiata, Pfr. in Wieym. Arch, f. NatASAQ, i. p. 253; 

 Zetischr. f. Malak. 1846, p. 187 ; Mon. Auric, p. 192. 

 Poeij, Memor. i. p. 393. 

 Kiist. Mon. p. 7. n. 3. 1. 1. f. 27-31. 

 H. and A. Adams, Gen. rec. Moll. ii. p. 311. 



Hob. Cuba and Isle of Carmen in the Gulf of Mexico. 



15. Truncatella pulchella. 



Shell sublimate, oblong, rather cylindrical, slender, rufous 

 horn-coloured or amber-coloured, rarely glassy, shining, rather 

 pellucid, sculptured with scarcely elevated, thread-like ribs, 

 which are smaller than the interjacent spaces, often more 



