66 THE NAUTILUS. 



Moellendorffia spurca deflexa (Mlldff.). Indo-China. 



Moellendorffia messageri (Bav. & Dautz.). " 



Moellendorffia callitricha (Bav. & Dautz.). " 



Moellendorffia (Moellendorffiella) erdmanni (S. & B.), China. 

 (PI. 2, figs. 9, 10.) 



Moellendorffia (Trihelix) horrida (Pfr.). Cambodia. 



Moellendorffia (Trihelix) biscalpta (Hde.), China. 



Moellendorffia (Trihelix) faberiana (Mlldff.), China. 



Moellendorffia (Trihelix) hiraseana Pils., Formosa. (PI. 2, 

 figs. 4, 5, 6.) 



Moellendorffia (Trihelix) eucharistus (Pils.), Ryukyu Is. 



Moellendorffia (Trihelix) eucharistus tokunoensis Pils. & Hir. 



Moellendorffia (Trihelix) eucharistus diminuta Pils. & Hir. 



Stegodera angusticollis (Marts.), China. (PI. 2, figs. 1, 2, 3.) 



Stegodera (Traumatophora) triscalpta (Marts.), China. 

 Moellendorffia (Trihelix) hiraseana n. sp. Plate 2, figs. 4, 5, 6. 



Shell planorboid, umbilicate, the umbilicus about one-fifth the diam- 

 eter of the shell, thin but moderately strong, brown (the exact color 

 not known, as the specimens found are dead). Sculpture of very 

 distinct minute granules, close but not regularly arranged, and on the 

 last whorl and a half, comparatively large oblong low tubercles, 

 rather widely spaced, and standing in somewhat irregular oblique 

 rows. Spire slightly sunken in the middle. Whorls 4^, convex, 

 the last more than twice the width of the preceding, convex above 

 and below, rounded peripherally, having a deep obliquely ascending 

 sulcus above the periphery on its last fourth, shallower as it ap- 

 proaches the lip, and another on the base, tangentially passing out 

 from the umbilicus. Aperture very oblique, heart-shaped, obstructed 

 within by two strong plicae representing the external furrows, the 

 basal plica standing transversely, the peripheral one entering. 

 Peristome well reflexed, whitish, the margins connected by a raised 

 callous parietal cord ; upper lip arcuate and tapering near the upper 

 insertion, then straightened and sloping, with a very slight prom- 

 inence within where the sulcus terminates ; basal lip but slightly 

 arcuate. 



Alt. 7.7, diam. 18 mm.; length from lip-edge to rear end of upper 

 sulcus 9 mm. 



Hotawa, Taiwan [Formosa]. Type no. 89999, A. N. S. P., from 

 no. 1406 of Mr. Hirase's collection. 



