52 NEW- YORK FAUNA — MOLLUSCA. 



Pupa armifera. 



Pupa armifera. Say, Jour. Acad. Nat. Sciences, Vol. 2, p. 162. 



P. id. Gotjld, Bost. Jour. Nat. History, Vol. 3, p. 401. 



P. id. Adams, American Journal of Science, Vol. 40, p. 271. 



Description. Shell oblong-oval, or somewhat obtusely fusiform. Suture distinct. Whorls 

 six, obsoletely wrinkled. Aperture longitudinally subovate. Lip reflected but not flattened, 

 interrupted above by the penultimate whorl, and with five teeth, of which the superior, and 

 that which precedes the basal one, are smallest. Pillar-lip with an undulated lamelliform 

 tooth ; its anterior extremity little elevated, but elongated so as almost to join the superior 

 extremity of the exterior lip. 



Height, 0*2 nearly. 



Var. a. The two smaller teeth obsolete. 

 Var. b. The basal tooth obsolete. 



This species has been found at Crownpoint in this State, and ranges westwardly to 

 Missouri. 



Pupa simplex. 



PLATE XXXVI. FIG. 347. 

 Pupa simplex. GotrLD, Bost. Jour. Nat Hist. Vol. 3, p. 403, pi. 3, fig. 21. In. InTertebrata of Massachusetts, p. 190, fig. 121. 



Description. Shell minute ; two-thirds of the shell cylindrical, surmounted by a rapidly 

 formed blunt apex, smooth. Whorls five, moderately convex, quite smooth, separated by a 

 distinct suture. Aperture circular, except for a small section from the posterior portion, 

 which is cut off by the encroachment of the preceding whorl. Lip simple and sharp, slightly 

 everted on the left side, and partially hiding a small umbilicus. No trace of a tooth. 



Color. Light chesnut. 



Diameter, 0*02. Height, 0*05. 



This appears to be a rare species, observed in Massachusetts, and first described by Dr. 

 Gould. 



(EXTRA-L1MITAL.) 



P. rupieola. (Say, Jour. Ac. Vol. 2, p. 163. P. procera, Gould, Jour. Bost. Soc. p. 481.) Shell 

 minute, attenuated to an obtuse apex. Whorls six, glabrous ; suture deeply impressed ; pillar-lip 

 bidentate ; upper tooth lamelliform, emarginate in the middle ; lower tooth placed on the columella, 

 and nearly at right angles with the preceding ; lip tridentate ; teeth placed somewhat alternately 

 with those of the pillar-lip. Color, white. Height, 0' 1. Florida. 



