HELIX-EUHADRA. 99 



H. eoa OROSSE, Journ. de Couchyl. 1868, p. 278 ; 1. c. 1871, p. 60, 

 t. 2, f. 2. PFR. Monogr. vii, p. 454. MARTENS, Mai. Blatter 1872, 

 p. 153. 



This form is certainly closely allied to H. luchuana Sow., but seems 

 to be flatter above. 



H. BLAKEANA Newcomb. Unfigured. 



Shell unicolored yellowish-white, rounded, semiglobose, shining, 

 translucent ; umbilicus large, deep and slightly covered ; apex obtuse ; 

 whorls 6, convex, the first three nearly on the same plane, the balance 

 rapidly increasing, the last swollen ; suture well marked ; aperture 

 roundly lunar ; lip thin, flatly reflected, at the columella broadly 

 dilated but not adherent. (Neivc.) 



Alt. 17, greater diam. 27 ?, lesser 25 mill. 



Niphon, Japan. 



H. Blalceana NEWC., Proc. California Acad. Sci. iii, p. 179, Jan. 

 1875. VON MARTENS, Sitzungs-Bericht Ges. Naturforsch. Freunde 

 zu Berlin 1877, p. 105. MOLLENDORFF, Journ. Asiat. Soc. Bengal, 

 LIV, p. 60, 1885. KOBELT, Faun. Jap., p. 23, t. 7, f. 10, 11. 



In general form and color this species makes a nearer approach to 

 H. Candida Moricand [Streptaxis (Artemoii) candidus Spix], than to 

 any species with which I am acquainted. It varies in the less eleva- 

 tion, in the form of the spire, and in some other respects. (Neivc.~) 



Dr. von Martens has identified with this species specimens 

 collected by Hilgendorf at Mohedsi, not far from Hakodate. Dr. 

 Anderson obtained it at Chitose, Yesso, according to Mollendorff. I 

 have not seen Dr. Kobelt's work, which is said to contain figures of 

 this shell. 



H. PELIOMPHALA Pfeiffer. PL 30. figs. 1, 2, 3, 4, 5, 6. 



Shell depressed, rather thin and light, openly umbilicate, straw- 

 colored, encircled by 1 to 3 chestnut zones, which are usually flecked 

 or interrupted by whitish streaks. The umbilicus is generally dark 

 chestnut inside. The surface is shining, rather coarsely obliquely 

 striate, microscopically and most densely striate spirally. The spire 

 is low, conoidal ; suture impressed ; whorls 5J-6, convex, the last 

 convex, descending a little in front; aperture oblique, rounded- 

 crescentic, showing the bands within ; peristome expanded, some- 



