loG 



A MANUAL OF AMERICAN LAND SHELLS. 



row, quite as in Arionta. Teeth 42-1-42. Anotlier membrane had 190 

 rows of 43-1-43 teeth. The eleveuth hiteral has a decided side cusp 



Fig. 138. 



Jaws of ^. Tryoni. 



and cutting point; the fourteenth has its inner cutting- boint bifid. 

 The characters of the individual teeth are shown in the figure, wliich 

 gives the central, the first, eleventh, fourteenth, thirty-seventli, and 

 forty second teetli. 



Genitalia (Terr. Moll., Y, Plate XIV. Fig. C) as usual in Arionta, es- 

 pecially in A. Stcarnsiana, but with this important difference, that from 

 the base of the dart sac (2) one thread-like organ (3) alone proceeds, 

 the other being rejdaced by a sponge-like process (1), evidently a form 

 of vaginal i^rostate. 



EXTRALIMITAi^ SPECIES OF EUPARYPHA. 



E. Jeris, Pfeiffer (see L. & Fr.-W. Sh., i 180), a species of the Lower California 

 fauna, has erroneously been quoted from Colniubia Rivor and Southern Cali- 



fornia. 



Family PUPID^. 



PUPA. (See below.) 

 Pupa Rouelli, NEwco:\rr,. 

 perforate, oblong-ovate, dark horn-colored, shining, translucent, 

 fiiieU" striated; apex obtuse; whorls 5, convex ; aperture trun- 

 cately ovate, armed with 4 teeth, 1 prominent and plicate on 

 the columella, 3 deeply seated within the aperture, 1 on the 

 columella, 2 within the peristome; peristome slightly reflected. 



Length, 2"""; breadth, 1™"'. 



I'lipn L'oH'elUi, Newcomb, Ann. N. Y. Lye, vii, 146. — Bland, Ann. N. Y. 



Lye, viii, 166, fig. 11 (1865).— W. G. Binxev, L. & Fr.-W. Sh., i, 



238, fig. 412 (1860); Terr. Moll., v, 202. 

 J'upilln liOweUii, Tryon, Amer, Jonrn. Conch., iii, 304 (1868). 



