170 OPEAS, CHINA. 



China: province Hunan (Fuchs). 



Stenogyra (Opeas) hunanensis GREDL., Archiv f. Natur- 

 geschichte 1., 1884, p. 271, pi. 19, f. 3. 



According to Gredler it differs from 8. nutans by the 

 smaller size, the last whorl not dilated, and the vertical 

 columella. It is characterized among Chinese species by the 

 cylindric form and the size, which is exceeded by 8. nutans 

 only. 



65. O. KUANGSIENSE (Gredler). PI. 19, fig. 15. 



Very similar to S. hunanensis, but more slender, long-tur- 

 rite, more strongly and regularly striate, especially at the 

 more sloping and impressed suture, glossy, waxy-whitish. 

 Whorls 8%, rather flat, very slightly terraced at the sutures, 

 regularly increasing, the last whorl slightly widened. Aper- 

 ture narrow, long-ovate, subperpendicular ; columella arcuate, 

 converging to the base, slightly truncate, outer margin of the 

 peristome straight behind the middle, a little inflexed. 

 Length 14, diam. 3 mm. (GredL). 



China: northeastern part of the province Kuang-si. 



Stenogyra (Opeas) kuangsiensis GREDL., Archiv f. Naturg. 

 1, 1884, p. 272, pi. 19, f. 4. 



Stands so near to 0. hunanus [hunanensis] that it can be 

 distinguished only by comparison. The more slender shape, the 

 less breadth of the upper and middle whorls especially, are 

 conspicuous. It is also less conically turrited, more fusiform 

 than hunanus, the whorls are flatter and the suture less im- 

 pressed. It is smaller than hunanensis and has a whorl less. 

 ( Gredler) . 



66. 0. ARCTISPIRALE (Gredler). PI. 19, fig. 16. 



Shell small, subperforate, subulate, very densely hair- 

 striatulate, with a silken luster, whitish (?). Whorls 10, a 

 little convex, slowly increasing, twice as wide as high, the 

 last and penultimate whorls subequal. Aperture tetragonal- 

 ovate, short; columella a little arcuate, the columellar margin 

 narrowly expanded, scarcely adnate. Length 9, diam. 2.33 

 mm. (Gredl.). 



