HELIX-EUHADRA. 105 



istome expanded, reflexed, thickened within. Straw-colored, oriui- 

 raented with reddish-brown bands at periphery and at suture. (Ad.) 

 Alt. 18, diam. 32 mill. 



Id. of Rifunsiri, Japan. 



H. miranda Ad., Ann. & Mag. .N. H., 4th ser., i, p. 461, 1868. 



A handsome species, of a deep straw color, adorned with a red- 

 brown band at the periphery and another at the suture. I found 

 several specimens adhering to the stems of a gigantic species of 

 Archangelica, in the little island of Rifunsiri near the Straits of La 

 Perouse. (Ad.) 



This species may be an Acusta. I have not seen it. 



H. CALLIZONA Crosse. PI. 28, figs. 1, 2, 3, 4, 5, 6, 7 ; pi. 29, figs. 



1,2. 



Shell dextral, narrowly, partly covered umbilicate, globose-conoi- 

 dal, thin and light. Surface slightly shining, lightly striatulate, 

 under a lens seen to be extremely finely marked by spiral striae all 

 over, except the inner two whorls. The color is pale buff, more or 

 less tinged with greenish or bluish, encircled by several distinct 

 deep chestnut zones, usually three in number ; the first a narrow 

 line edging the suture, the second encircling the whorl just above 

 the periphery, the lower one wider, sometimes occupying the entire 

 central tract of the base and the umbilicus. The spire is elevated, 

 conoidal ; apex a little obtuse ; whorls 6, very slowly widening, the 

 last deflexed in front, rounded at the periphery. Aperture oblique, 

 rounded-lunar ; peristome expanded, a little thickened within, basal 

 and columellar margins reflexed, the latter partly covering the 

 umbilicus. Alt. 23-25, greater diam. 25-30 mill. 



Hada and Idsumo, Western Japan ; Id. of Niphon, in the interior. 



H. callizona CROSSE, Journal de Conchyl. 1871, p. 226, 319, t. 

 13, f. 3. MARTENS, Jahrb. D. M. Gesell. iii, p. 358, 1876; Sitz- 

 ungsb. der Gesellsch. naturforsch. Freunde zu. Berl. 1877, p. 102; 

 Novit. Conch, v, p. 31, t. 143, f. 24-27. H. amalice KOBELT, 

 Jahrb. D. M. Gesell. ii, 1875, p. 327, t. 12, f. 3, 4; Nachr. D. M. 

 Ges. vii, 1875, p. 55 ; Jahrb. iii, p. 149, t. 5, f. 2. PFR. Monogr. 

 vii, p. 587. H. congener E. A. SMITH, Proc. Zool. Soc. Lond. 1878, 

 p. 105 (figs, in text). 



H. callizona may be distinguished from peliomphala and its 

 varieties by the more elevated, conoidal form, narrower umbilicus 

 and continuous bands, not interrupted by opaque whitish flecks or 



