16 PROCEEDINGS OF THE ACADEMY OF [Jan., 



small longitudinal folds which do not extend below the periphery, 

 the narrow part of the base spirally striated. Aperture white, about 

 half the length of the shell, narrow and sinuous, the outer lip toothed 

 within, the columellar lip very minutely so. 



Length 2.8, diam. 1.3 mm. 



Hahajima, Ogasawara. Types No. 85,960, A. N. S. P., from No. 

 1,387 of Mr. Hirase's collection. 



This small Seminella resembles C. troglodytes Souv. and C. sinensis 

 Sowb., but the longitudinal plication is finer than in either. C. sinensis 

 has been taken in Tokyo Bay. 

 Colnmbella divaricata n. sp. PI. Ill, fig. 26. 



Shell fusiform, rather thin, not glossy, light olive-brown, marked 

 with red-brown spiral lines which slowly converge forward from above and 

 below, meeting in acute angles just below the periphery. About 5 of these 

 lines may be counted in any one place on the penultimate whorl. 

 Suture bordered below with a snow-white band which ascends the spire 

 Surface smooth except on the contracted base which is spirally lirate. 

 Whorls about 6, nearly flat, the last without noticeable varix behind the 

 acute lip. Aperture narrow and long, not dentate within, the colu- 

 mella only slightly concave. 



Length 6, diam. 2 mm. 



Hirado, Hizen. Types No. 85,972, A. N. S. P., from No. 1,411 of 

 Mr. Hirase's collection. 



This beautiful species is colored somewhat like C. digglesi Braz., 

 which in other respects is totally unlike. J know of no related form. 



MURIOIDJE. 



CoralliopMla Jeffreys! var. hiradoensis nov. PI. Ill, fig. 27. 



The shell in this form is fusiform, with the aperture noticeably longer 

 than the spire. There are 7 or 8 strong folds on the last whorl, most 

 prominent at the periphery. The whole surface is closely lirate 

 spirally, the cords densely roughened with suberect scales. There are 

 17 primary cords on the last whorl above the prominent siphonal fas- 

 ciole, not counting 4 or 5 smaller ones interpolated in the subperipheral 

 region. The aperture is white within, with a dark-brown marginal 

 border which is deeply sulcate. There are a few acute cords making 

 the throat sulcate. 



Length 29, diam. 15.5 mm. ; length of aperture 16.5 mm. 



Hirado, Hizen. Types No. 85,981, A. N. S. P., from No. 1,407 of 

 Mr. Hirase's collection. 



In C. jeffreysi Smith the aperture is smaller. 



