114 PUPOIDES. 



y Nat. de la Isla de Cuba, v, Moluscas, 1845, p. 96, pi. 12, f. 



9,11. 



Topotypes are figured from a quarry near the road on the 

 west side of Matanzas Bay, where it is abundant. 



This is the common West Indian Pupoides, much more gen- 

 erally diffused than P. marginatus. It intergrades in size 

 with margwmtus, though the latter is rarely so small ; yet the 

 prevalence of this minor form indicates racial diversity which 

 may properly be recognized in taxonomy. It is very much 

 like P. modicus, but fully adult shells differ by the internally 

 thickened lip of nitidulm. 



The original descriptions follow. 



Pupa parrcviana. Shell oblong-ovate, subcylindric-p erf or- 

 ate, brown, smooth ; spire lengthened, apex acuminate-obtuse ; 

 6 convex whorls; aperture oval; lip margin wide, reflected, 

 white. Length 4, diam. 1.5 mm. Cuba (Orbigny). 



Bulimus nitidulus. Shell rimate-perforate, oblong, solid, 

 striatulate, somewhat glossy, tawny ; suture deep ; whorls 5%, 

 convex, scalariform, the last about one-third the length. 

 Aperture oval; peristome expanded white, somewhat lipped 

 within, margins converging, the right margin arched, colu- 

 mellar somewhat straight, dilated. Length 4, diam. 2 mm., 

 aperture 1% mm. long, 1 wide. Very rare around Matanzas, 

 Cuba (Pfr.). 



2. PUPOIDES SIMONI (Jouss.). PI. 12, fig. 8. 



Shell rimate-perforate, ovate, thin, transparent, the pale 

 corneous color is a yellow quite noticeably tinged with red- 

 dish. The spire is convexly conic, apex obtuse. Whorls 5%, 

 irregularly coiled, the penult larger, giving the shell a ventri- 

 cose aspect. Two earlier whorls smooth, the rest having fine, 

 oblique striae, nearly effaced, quite regularly placed, visible 

 only under a strong lens. Aperture subovate, rounded, tooth- 

 less; the peristome widely reflected, whitish with a red band 

 around the throat, strongly curved in at the posterior inser- 

 tion. Columellar margin straightened, reflected above the 

 umbilicus. Parietal callus thin. Length nearly 4, diam. 

 nearly 2 mm. 



Venezuela: Caracas (Simon). 





