164 OPEAS, CHINA. 



ing downwards, not truncate ; right margin arching forward, 

 joined to the eolumellar by a very delicate callus. Length 

 9, diam. 3 mm. (Gredl.) . 



China: Western Yun-tcheu-fu, southern Hunan (Gredler). 



Stenogyra turgida GREDLER, Jahrb. d. D. Malak. Ges. viii, 

 1881, p. 21, pi. 1, f. 3. HEUDE, Memoires p. 57, pi. 20, f. 22. 

 Opeas clavulina P. & M., GREDLER, Malak. Bl. n. F. ix, 

 p. 142. 



In a later list (1887) Gredler considered his species to 

 be a synonym of 0. davulinum, with which Dr. Boettger 

 identified it; but in Nachrbl. 1890, p. 153, he again allows it 

 to stand as a species. The original figure is copied in my 

 fig. 31, Heude gives more enlarged views, copied on plate 

 20, figs. 29, 30. 



47. 0. NUTANS (Gredler). PI. 20, fig. 32. 



Whorls lO^, while even the large Chinese species such as 

 erecta Bs. and mandarina Pfr. have but 8. The putative 

 novelty is moreover remarkable for its small diameter, ex- 

 cepting the rather inflated and high last whorl, 5 mm. in 

 diam., while the visible part of the penult, whorl measures 

 only 3 mm. The somewhat bent axis may well be in- 

 dividual and abnormal. 



China: western part of the district Yun-tcheu fu. 



Stenogyra (spec. nov. F), GREDLER, Jahrb. d. D. Malak. 

 Ges. viii, 1881, p. 22, pi. 1, f. 4. Stenogyra nutans GREDL., 

 Nachrbl. 1890, p. 153. Stenogyra (Opeas) nutans Gredl. 

 var. macra GREDLER, Zur Conchylien-Fauna von China, xvii 

 Stuck, Wien, 1892, p. 7. 



Var. macra Gredler. The shell is distinctly narrower, sut- 

 ure more oblique, and the length greater. Alt. 19.5, diam. 

 4 mm. 



48. O. GRACILIUS (Gredler). PL 20, fig. 33. 



Shell slightly rimate, very slenderly subulate, thin, irre- 

 gularly and 'closely wrinkle-striatulate, the striae arching for- 

 ward, disappearing above; hyaline, rather glossy, the apex 

 obtuse. Wliorls 8, a little convex, slowly increasing, the last 



