200 HELIX-SATSUMA. 



Aperture oblique, round lunate, the margins converging ; peristome 

 expanded, the columellar margin dilated at the insertion. 



Alt. 11, greater diam. 14, lesser 12 mill. (TF.). 



Mizu on Kiusiu, Japan. 



Helix eumenes WESTERL., in Vega-Expeditionens Vetenskapliga 

 lakttagelser, iv, p. 197, t. 3, f. 8 (1887). 



Belongs to the group containing H. Jiilgendorfii and macrocycloides 

 Kob., goodwini Sm., and proba Ad. 



H. TROCHACEA Gredler. PI. 53, fig. 77, 78. 



Shell rather openly umbilicated, trochiform, thin corneous-tawny, 

 with a pearly lustre ; unequally and very obliquely, broadly and 

 strongly striated ; above almost invisibly, below very densely spir- 

 ally striated. Spire conoid, apex obtuse. Whorls 7, slowly 

 increasing, slightly convex, slightly terraced at the deep sutures, 

 the last whorl acutely angulated at the periphery, convex beneath, 

 shortly descending in front. Aperture oblique, ovate subcircular, 

 flesh-colored inside ; peristome thin, margins converging, the super- 

 ior curving forward, expanded, the columellar very narrowly 

 reflexed at the umbilicus. 



Alt. 8-9, diam. 10J-11 mill. (Gred.}. 



Hensan (Hen-san-shien\ China. 



Helix (Fruticotrochus) trochacea GREDLER, Zur Conch ylien-Fauna 

 von China, viii Stiick, p. 7, Bozen, 1885 ; Annalen des k. k. natur- 

 hist. Hofmus. ii, p. 584, t. 11, f. 18, 19 (1887;. 



H. SPH^ROCONUS Pfeiffer. PI. 53, figs. 75, 76. 



Shell narrowly rimate, elevated globose-conic, rather solid, light 

 straw-colored with a brown line at 'the periphery, bordered below 

 by a pale line. Whorls about 7, slightly convex, the last rounded 

 at the periphery and beneath, hardly descending in front. Aper- 

 ture irregularly rhombic, somewhat oblique ; outer lip hardly 

 expanded, arcuate at the upper insertion, then peculiarly bent 

 inward ; basal lip arcuate, subexpanded ; columella vertical, broadly 

 reflexed over and almost concealing the umbilical perforation. 



Alt. 23, diam. 18 mill. 



Alt. 30, diam. 20 mill. 



Formosa. 



' Bulimus sphceroconus PFR., P. Z. S, 1865, p. 830, t. 46, f. 3 ; Mai. 

 Bl. xiii, 1866, p. 43; Monographia vi, p. 75. Cochlosfyla (Phoeni- 

 cobius) sphceroconus PFR. & CLESS., Nomencl. Hel. Viv. p. 210. 



