191) TOBNATELLIDES, JAPANESE ISLANDS. 



1. T. BOENINGI (Schinacker et Boettger). PI. 44, figs. 5, 6, 7. 



Shell widely perforate, conic-turrite, thin, diaphanous, 

 glossy, pale corneous-brown. Spire almost exactly long-conic, 

 the apex rather acute. Whorls 6, a little convex, slowly in- 

 creasing, parted by a distinct suture, striatulate; the last 

 whorl moderately inflated, rotund, especially rounded-sub- 

 cristate around the umbilicus, almost one-third the alt. of the 

 shell. Aperture oblique, truncate-oval, with one lamella. 

 Peristome unexpanded, simple, the margins distant, right 

 margin regularly curved, columellar margin triangularly di- 

 lated above, protracted. Columella vertical, hardly twisted, 

 a little convex. There is a thin, low lamella in the middle of 

 the parietal wall, entering far within. Length S 1 /^ diam. 1%, 

 alt. aperture l 1 /^, width % nun. ($ and B.). 



Formosa: Tamsui (Mr. G. Degeiier-Boening) . 



TornateUina bocningi S. & B., Nachrichtsblatt d. Deutschen 

 Malak. Ges., xxiii, December, 1891, p. 180, pi. 2, f. 7. 



2. T. INEXPECTATUS (Pilsbry). PI. 44, tigs. 1, 4. 



The shell is urnbilicate ovate-pyramidal, cinnamon colored 

 or paler, glossy, growth-lines faint; outlines of spire straight. 

 Whorls 5%, not very convex, the last rounded at the periph- 

 ery, convex below. Aperture irregularly ovate. Parietal la- 

 mella very low, nearly a half-whorl long. Peristome thin ; 

 eolumella slightly convex, outwardly broadly dilated and re- 

 flexed. Length 3, diam. 1.7 mm. 



Loochoo (Ryukyn) Islands: Great Loochoo (Yaeyama), 

 type loc. ; Kume-jima; Okinoerabushima (Hirase). Islands 

 of Izu: Hachijo-jima and Miyakc-jinia (Hirase). Types no. 

 80970 A. N. S. P. 



TornaliUhni i,n .r/x ctuhi PILS., Nautilus, xv, p. 23 (June. 

 1901). 



There are no columellar lamella 1 at any stage of growth. 

 While this shell appeai-s to be a little less turrited than T. 

 booiingi of Formosa, and not especially prominent around the 

 umbilicus, yet it seems likely that the two are not specifically 

 distinct. Formosan specimens should be compared with the 

 Looc'hooan. 



