PUPOIDES. 115 



Leucocliila simoni JOUSSEAUME, Mem. Soc. Zool. de France, 

 ii, 1889, p. 246, pi. 9, f. 2. 



About the size of P. m. n/itidula and P. modica, and to be 

 compared with those forms, with one of which it may very 

 likely prove identical. The description is abbreviated from 

 Jousseaume, and his figure is copied, as no Venezuelan speci- 

 mens of Pupoides are at hand. 



3. PUPOIDES MODICUS (Gould). PI. 12, figs. 13, 14, 15. 



The shell is perforate, rimate, tapering from the last whorl 

 to the obtuse summit, thin, dull brown, somewhat glossy, 

 irregularly striate. The whorls are strongly convex, the last 

 ascending in front. The aperture is oval. Peristome thin, 

 broadly expanded, very little or not thickened within, white, 

 the outer margin regularly curved, columellar margin straight- 

 ened, margins converging and joined by a transparent callus. 

 No callous pad or tubercle in the angle. 



Length 4.2, diam, 2.1 mm. ; 5 whorls. 



Length 3.9, diam. 2.15 mm. ; 5 whorls. 



Length 3.45, diam. 1.8 mm. ; 4% whorls. 



St. Simon's Island, Georgia, and Cedar Keys, Florida, to 

 Key West; near the coast. Bimiui Keys, Bahamas (G. H. 

 Clapp). 



Pupa modica Gld., Proc. Boston Soc. N. H., iii, 1848, p. 40 

 (Florida) ; Terr. Moll., ii, p. 318, pi. 52, f. 2. W. G. BINNEY, 

 Terr. Moll., v, p. 204, pi. 52, f. 2. --Pupoides modicus Gld., 

 VANATTA, Nautilus, xxi, pp. 100-104 (Florida Keys). CLAPP, 

 Nautilus, xxvii, p. 64 (Bimini Is.). WALKER, Nautilus, xxxi, 

 pp. 54, 56 (between Chester shoal and Cape Canaveral, Palm 

 Beach, Long Key). 



The shell is smaller and thinner than P. marginal us, some- 

 what more striate, the lip very little or not thickened. The 

 last character is about all that separates modicus from the 

 Antillean P. margitiatus nitidulus, which is about the same 

 size, and when not quite mature cannot be distinguished. 

 The angular tubercle is sometimes practically wanting in 

 small forms of P. marginatus. Key West examples are figured. 



Dr. Clapp found P. modicus on South Bimini, North Cat 



