TORTAXIS. 7 



twisted, almost vertically truncate at the base. Peristome 

 simple and thin. Length 7, diam. 2.5, aperture 2.33x1.5 

 mm. (Pfr.). 



Shanghai, China (Fortune, in Mus, Cuming). 



Achatina chinensis PFR., P. Z. S., 1854, p. 294; Mono- 

 graphia, iv, p. 614. 



This small species has not been figured. It seems from the 

 "almost vertically truncate columella" to be a Tortaxis rather 

 than a Subulina. According to von Moellendorff, the species 

 reported by Fortune and others from "Shanghai" really 

 came from the tea district in the interior of the province. 



Compare also Opeas layardi etc., which may be the nearest 

 allies of this species. 



4. T. MANDARINUS (Pfeiffer). PI. 2, figs. 27, 28, 29. 



Shell imperforate, cylindric-turrited, rather solid, smooth, 

 glossy, buff- waxen. Spire long, the apex attenuate, obtuse; 

 suture margined. Whorls 8, the first rounded, the rest mod- 

 erately convex, last whorl about one-fourth the total length, 

 rounded basally ; columella callous, twisted, subduplicate. 

 Aperture oblique, elliptic-oval; peristome simple, unex- 

 panded, the right margin arching forward above. Length 

 23, diam. 6 mm., aperture scarcely 6 mm. long, 3.5 wide 

 (Pfr.). 



China (Mus. Cuming). Province Kuang-tung (Gredler). 



Spiraxis mandarina PFR., P. Z. S., 1855, p. 9 ; Monogr., iv, 

 p. 573. Stenogyra (Euspiraxis) m., GREDLER, Malak. BL, 

 ix, p. 142. 



This species has not hitherto been figured. Specimens said 

 to be from Canton are before me, two being figured on my 

 plate. The shell differs from T. erecta var. fucksiana by its 

 more slender shape, shorter aperture, and the form of the 

 columella, which in profile (fig. 29) appears doubly plicate. 

 Two specimens measure: 



Length 22, diam. 6.1, aperture 6.2 mm.; whorls 8. 



Length 28, diam. 7, aperture 7 mm.; whorls 9. 



5. T. ERECTUS (Benson). PI. 2, figs. 24, 25, 26. 



Shell whitish, rather solid, subulate-turrited, epidermis 



