200 PUPILLA, ASIA. 



It differs from P. heudeana by lacking palatal folds. 



25. PUPILLA HEUDEANA (Mlldff.). PL 22, figs. 1 to 5. 



Shell dextral, conic-cylindric, rimate-perforate, brown, most 

 minutely but distinctly and regularly striatulate. Spire with 

 subconic, obtuse apex. Whorls 6, flattened, joined by an im- 

 pressed suture, subequal, the last subcarinate anteriorly 

 around the umbilicus, subcompressed basally. Aperture ver- 

 tical, rounded, somewhat sinuate at suture, the peristome re- 

 flected, expanded, thickened, the margins joined by a thin 

 callus ; right margin tapering to the insertion, having a strong 

 tooth ; columellar margin straight, a little expanded.- One 

 lamelliform parietal lamella excavated in the middle, another 

 columellar, deeply placed and somewhat strong, two deeply 

 placed, punctiform palatal folds. Length 3, diam. 1 mm. 

 (MUdff.). 



China: In the old bed of the Hoang-ho near its former 

 mouth into the Yellow Sea, near the town of Huai-an-fu, 

 Prov. Kiang-su, under stones (P. Heude, type loc. of P. cryp- 

 todon and P. heudeana} ; Shanghai (Schmacker) ; Prov. Pe- 

 chili at Shan-hai (Hirase). Prov. Shan-dung at Dshi-nan-fu 

 (Moltner). 



Korea: Seoul (Gottsche), Fusan (Hirase). 



Japan: Mikage, Settsu (Hirase). 



Pupa cryptodon HEUDE, Notes sur les Moll. Terr, de la 

 Vallee du Fleuve Bleu, in Mem. concernant 1'Hist. Nat. de 

 1'Emp. Chinois, 1880, p. 77, pi. 18, f. 20 (not Pupa cryptodus 

 Al. Brauu, 1842). Pupa (Pupilla) heudeana MOELLENDORFF, 

 Jahrb. D. Malak. Ges., xi, 1884, p. 176. GREDLER, Malak. Bl., 

 n. F., ix, p. 145. Pupilla heudeana MLLDFF., Ann. Mus. Zool. 

 Acad. Imp. Sci. St.-Petersb., vi, 1901, p. 381, with subsp. 

 grandis. 



In this widespread species of eastern China, Korea and 

 Japan the angulo-parietal lamella is more or less interrupted 

 or lobed, the outer lip has a projection or tooth below the 

 sinulus, and there are two palatal folds, thereby differing 

 from the closely related P. aeoli of northwestern China. It is 

 quite variable in the considerable series seen. 



