[129 ] 

 2. Macroceramus Gossei, Pfeiflfer. 



Plate 14, figures 18, 19. 



Fusiformly cylindrical, obliquely costulate ; whorls 6, convex, 

 sutures crenulate ; aperture obliquely rounded, the lip slightly 

 expanded ; base subangulate, rimate. White with curved ob- 

 lique dark bands and corneous dots ; sometimes the markings 

 are obsolete. 



Length 11, diam. 3-6 mill. ''ol2^^'^:G^'^^- 

 Texas (Coll. Menke). 



PUPA, Draparnaud. 



Subgenera. 



PiTPiLLA, Leach. Cylindrical, apex obtuse ; whorls 5 — 9, cor- 

 ,^neous, somewhat shining; aperture rounded, lip expanded, 

 scarcely reflected, armed with teeth within or without 

 teeth. 



Leucochila, Albers. Cylindrically ovate, apex somewhat ob- 

 tuse, smooth, pellucid, shining ; aperture semioval, edentu- 

 lous, or armed with teeth or plications, lip thickened, re- 

 flexed ; rimate. 



Genus PUPILLA, Leach. 

 1. Pupilla badia, Adams. 



Plate 15, figure 2. 



Shell subcylindrical, with an obtuse apex ; whorls about 6, 

 moderately well rounded, with well-marked suture ; aperture 

 small, rounded, with a small tubercle on the parietal wall, and 

 occasionally a tooth on the base of the lip ; umbilicus perforate. 

 Dark chestnut color. 



Length 3, diam. 1-5 mill. : '' ' ,a:iyi,"4^'.^". 



New England States. 



It has been confounded Avith P. muscorum, of Europe, by some 

 American and foreign naturalists, but diff"ers in being larger 

 with a less thickened lip. 



