PUPILLA, ASIA. 201 



The form figured by Heude under the preoccupied name 

 P. cryptodon (represented in pi. 22, fig. 1, a topotype from 

 Heude) has the mouth parts rather weakly developed. The 

 internally thickened lip has a rather low but distinct projec- 

 tion near the upper third. The angular lamella does not 

 reach to the angle of the mouth, and is only rather weakly 

 connected with the stout, short parietal lamella; the connec- 

 tion being somewhat transparent, Heude described it as 

 "dente parietali brevi, interrupto. ' ' The columellar tooth is 

 a low, wide nodule. Palatal folds are quite small tubercles, 

 rather near together. There is a very slight swelling a short 

 distance behind the weakly expanded lip, but no crest or con- 

 striction. Length 3.3, diam. above aperture 1.6 mm. ; 6 l / 4 

 whorls. 



Moellendorff 's type of heudeana was a specimen from the 

 same place, evidently having the apertural parts more fully 

 developed, as he speaks of the lip-tooth as strong, and the 

 parietal as "nur eiiifach gebuchtet. " His measurements were 

 doubtless roughly taken, and certainly wrong. 



In shells from Shan-hai, Pe-chili, pi. 22, figs. 2, 3, the lip is 

 strongly developed. The angular lamella reaches to the lip- 

 end, and is weakly bilobed, being weakly continuous with the 

 parietal lamella (fig. 3). All are quite low. The palatals re- 

 main small, the upper one sometimes wanting. Length 2.8, 

 diam. above aperture 1.6 mm. ; hardly 6 whorls. Also up to 

 3.15 mm. long. Specimens from Fusan, Korea, have also the 

 trilobed angulo-parietal lamella, but the inner or parietal por- 

 tion is much higher than in the Shan-hai shells. Length about 

 3 to 3.2 mm. 



Japanese specimens, pi. 22, figs. 4, 5, Mikage, Settsu, have 

 the angular and parietal lamellse separate or nearly so, both 

 more strongly developed than in any mainland forms seen ; 

 the parietal is much longer, the palatals and columellar well 

 developed. Length 3.5, diam. 1.7 mm., of 7 whorls, to length 

 3.1 mm. 



P. k. grand-is Mlldff. Larger and somewhat thicker, 2 x 3.8 

 mm. Prov. Gan-su at Shan-tshuan, Djamba and Tshing- 

 viian. 



