30 PROCEEDINGS OF THE ACADEMY OF [Jan., 



This species differs from T. bicincta A. Ad. by the absence of spiral 

 lirse on the base. 



A variety may be called T. hiradoensis var. badia. It is of a dark 

 reddish-brown or purplish-brown color throughout. The specimens 

 occurred with T. hiradoensis. 



Turbonilla (Cingulina) terebra Dkr. PI. V, fig. 46. 



Shell slender, its length four times the diameter; lateral outlines 

 straight; white; faintly marked with growth-lines. Sculpture of 3 

 spiral grooves on each whorl, the spaces between them equal, the lowest 

 groove smaller than the others, a narrow space between it and the 

 suture. Last whorl with the third groove nearly peripheral, several 

 narrower grooves below it on the convex base. Whorls 11, besides 

 the upturned planorboid nucleus. They are moderately convex and 

 separated by deep sutures. 



Length 8, diam. 2 mm. ; aperture 2 mm. long. 



Hirado, Hizen. No. 9226 of Mr. Hirase's collection. 



This species tapers more rapidly than T. triarata, and the 3 spiral 

 grooves are parted by 2 equal spaces. The space above the upper 

 groove is more convex than the others. In immature shells the base 

 has numerous spiral engraved striae, closer near the axis, but in the 

 largest shells they become fainter. 



This species must be closely related to Cingulina subulata Clessin, 13 

 described from Macao; but the whorls are more convex, and there 

 are spiral grooves on the base of the last whorl, which in subulata is 

 said to be "nach unten gerundet, glatt." The spiral grooves are more 

 emphatic in T. spina C. and F., of New South Wales and South Aus- 

 tralia, and which has also been reported from Karachi by Melvill, 

 Proc. Zool. Soc., 1901, p. 395. 



The following species of the subgenus Cingulina have been reported 

 from Japan : 



C. cingulata Dkr., Moll. Jap., p. 16. 



C. terebra Dkr., Moll. Jap., p. 16. 



C. circinata A. Ad., Ann. Mag., 1860, VI, p. 414. 



C. japonica Clessin, Conchylien Cabinet, Eulimidce, p. 223. 



None of them have been adequately described or figured. 



Turbonilla (Cingulina) cingulata (Dkr.). PL V, fig. 47. 



In this species there are three deep equidistant spiral furrows, some- 

 what narrower than the intervening cords, on each whorl. Of the four 

 cords, the upper three are equal, the lower one narrower. On the base 



1:1 Conchylien Cabinet, Eulimidce, p. 223. 



