PUPA. 



247 



Fig. 430. 



Pupa incana. 



Pupa incana, Bixxry. — Shell deeply riraate, cylindrically-oblong, 

 solid, smooth or delicately striate, shining, chalky; spire elongate, gradu- 

 ally attenuated into a rather acute cone ; suture light, margined ; whirls 

 eleven, flat, very gradually increasing, the last 

 scarcely equalling or shorter than the length, 

 wrinkled anteriorly, more or less arcuately 

 ascending, at base subcompressed ; aperture 

 small, roundly-lunate, light flesh color within, 

 furnished with a moderate deeply seated 

 parietal tooth and an obsolete columellar fold; 

 peristome somewhat thickened, shortly re- 

 flected all round, its terminations joined by a 

 thin callus, that of the columella dilated and 

 arched above. Length 2G, diam. 10; of aper- 

 ture, length 8-9, diam. 7-8 mill. 



A variety has irregular longitudinal streaks 

 of reddish-brown. 



Pupa incana, Binney, Terr. Moll. I, 109 ; III, pi. Ixviii. — Leidy, T. ?I. 

 U. S. I, pi. XV, f. 2-4, anat.— Pfeiffer, Mai. Blatt. II, 13 ; Mon. Hel. 

 Viv. IV, 657.— W. G. Binxey, Terr. Moll. IV, 140, pi. Ixxix, f. 17. 



Pupa mumia, Putiez and Michaud, Gal. 1, 169, pi. xvii, f. 1-2 (teste Pfr.). 



Pupa maritinia, y, Pfeiffer, Mon. Hel. Viv. Ill, 539. — Gould, in Terr. 

 Moll. II, 316. 



Pupa detrlta, Shuttleworth, MS., Pfeiffer, in Mai. Blatt. I, 158 (1853) ; 

 I, 205 (1854), pi. iii, f. 9, 10. 



A Cuban species found on the Florida Keys. It is found on 

 saline plants a few inches from the soil on low 

 grounds near salt-water ponds. 



The jaw (Fig. 431) is strongly arcuate, of uni- 

 form width, ends square ; anterior surface striate ; 

 concave edge with a blunt median projection.* 



Lingual membrane' with 129 rows of 49 teeth 



Fig. 431. 



Fig. 432. 





Mm^^'^' 



Lingual dentition of Pupa inrana. 



' The jaw figured was extracted by myself from a specimen in alcohol. 

 That figured in Terr. Moll. I, pi. xv, f. 4, is quite different. 



2 The figure of the lingual dentition referred to this species in the second 

 volume of the Terrestrial Mollusks represents that of Macroojdis concava. 



