216 HELIX-EULOTA. 



ity of hairs or their total absence upon the apex has been consid- 

 ered a character of Eulota. Until some other criterion for the 

 discrimination of the genera is shown to be available, I prefer to 

 adhere to this arrangement, being of the opinion that its abandon- 

 ment would cause more confusion than its retention. 



H. KIANGSINENSIS Martens. PL 55, figs. 18, 19. 



In Vol. Ill, p. 209, Tryon has included this form as a synonym 

 of H. maackii var. unizonalis H. Ad.; but while the identity with 

 Adams form is probable, kiangsinensis is very distinct from H. 

 maackii and its variety depressior Pfr. (conrauxiana Heude) in lack- 

 ing the prominent costulation of those forms. One of Martens' 

 original figures of kiangsinensis is given in Vol. Ill, pi. 48, fig. 67. 

 This figure represents a small form. The figures on pi. 55, repre- 

 sent well-grown specimens. The aperture in these large forms is 

 subcircular, lip expanded, reflexed below and at the columella. 

 The basal lip is remarkably arcuate. Specimens before me measure 

 38 mill, greatest diameter, and they are known even larger. 



Central China. 



H. maackii var. unizonalis H. Ad., P. Z. S. 1870, p. 793. H. 

 kiangsinensis MTS. Sitz.-Ber. Ges. Nat. Fr.-Berlin, Jan. 1875, p. 2 ; 

 Mai. Bl. xxii, p. 186 ; Novit. Conch, iv, p. 151, t. 134, f. 15-17. 

 PFR. Monogr. vii, p. 407, 587. GREDLER, Nachr. Bl. 1878, p. 102 ; 

 Mai. Bl. (n. f.) i, p. 173. HEUDE, Moll. Terr. Fl. Bl. 1882, p. 5, 

 t. 14, f. 1. HILBER, Sitz.-Ber. 1882, p. 344, t. 3, f. 7. ANCEY. 

 Nat. Sicil. 1883, p. 4. GREDLER, Jahrb. 1884, p. 136, (varieties) 

 p. 359. 



Var. major Mlldff. Larger than the original Martensian exam- 

 ples ; base more convex, and aperture rounded. 



Var. cerasina Gredler. Nearly uuicolored cherry-red. 



The specific name unizonalis Ad. should not be used because of 

 the insufficiency of Adams' description. 



H. DUPLOCINCTA Martens. PI. 49, figs. 39-42. 



Shell conic-globose, perforated, striatulate, and distinctly spirally 

 lineate, sometimes malleated, pale grayish-yellowish, with a median 

 whitish zone, bordered on each side with brown ; rarely unicolored. 

 Whorls 6, slightly convex, spire short-conoid, apex obtuse, pale ; 

 the last whorl inflated, very distinctly deflexed in front. Aperture 

 little oblique, suborbicular ; peristome a trifle expanded, white- 



