OPEAS, CHINA. 171 



China: Patong, in southwestern Hupe (Fuchs). 



Stenogyra (Opeas) arctispira GREDLER, Arehiv f. Naturg. 

 \, 1884, p. 273, pi. 19, f. 5; not of Martens, 1867. Opeas 

 arctispiralis GREDL., Malak. Bl. (n. F.) ix, p. 142. 



A small and slender, acuminate-turrited species, character- 

 ized by the close convolution of its 10 whorls and the low 

 mouth, scarcely higher than the penult, whorl. The fine 

 thread-lite striation, which it shares with several Chinese 

 species, dims its gloss and gives the cuticle a silky appear- 

 ance (Gredler). 



67. 0. PELLITUM (Gredler). 



Shell perforate, turriculate, densely and strongly striate, 

 pale-corneous tout clothed with a brownish hair-striate, silky 

 epidermis, the apex smooth and rather obtuse; spire acute. 

 Whorls 8y 2 , the first 4 convex, small, the rest gradually in- 

 creasing, high and flatter, joined by an oblique, impressed 

 suture. Aperture narrow, long-ovate, the columellar mar- 

 gin dilated, a little reflexed, the outer lip rather inflexed. 

 Length 10.5, width 2.5 mm. (Gredl.). 



China: district of Yin-tcheu-fu, Hunan (Fuchs). 



Stenogyra (Opeas) pellita GREDL., Jahrb. d. D. Malak. 

 Ges. xi, 1884, p. 147. 



Comparable in aspect with a large Stenogyra gracilior or 

 a small funicularis. From the figure of the last, pellita 

 differs in having the last whorl less inflated. The shell is 

 clothed with a transversely striate, fibrous, brownish 

 epidermis. 



68. 0. HEUDEI n. sp. PI. 24, fig. 30. 



Shell rimate, turrite, regularly tapering, the sides straight ; 

 thin, faintly yellowish-corneous, glossy, weakly wrinkle-stri- 

 ate. "Whorls 7i/ 2 , moderately convex, the suture deeply im- 

 pressed. Aperture ovate, contained about 3y 2 times in the 

 length of the shell. Columella slightly concave, rather broadly 

 reflexed above. Length 8.5, diam. 2.7, aperture 2.5 mm. 



China: Hangchow, type loc., and Soochow (Hirase). 



This species has a smaller apex and more slender, tapering 

 spire than 0. clavulinum or its Japanese form, kyotoense, but 



