366 PROCEEDINGS OF THE ACADEMY OF [May, 



well with Molleudorff' s description and figure, except in having 10 

 whorls instead of 9, and in being a trifle larger. The very short 

 lunella is connected with the lower palatal plica in the specimen 

 figured (figs. 1, 2), but in another it is a short fold exactly as 

 figured for var. jayi (PI. XVII, fig. 3). The figured shell meas- 

 ures length 15, diam. 3.7 mm. The spiral and inferior lamellae 

 are of equal length, reaching past the ventral side to a lateral posi- 

 tion on the left side. 



The species is somewhat remarkable for the nearly ventral posi- 

 tion of the palatal plicae, a point which von ]\[6llendorff has empha- 

 sized. They are placed quite as in Tyrannopluedusa, while in 

 Hemiphcedusa these plicae are generally lateral or latei'o-dorsal. 

 The long spiral lamella is also a Tyrannophaedusan character. 



The clausilium is narrow-, parallel-sided, rather straight, notice- 

 ably oblique at the distal end (but not thickened there as it is in 

 Tyrannophcedusa), and excised on the columellar side near the 

 filament. It is like that of var. jayi. 



C. caryostoma is known only from Kobe, Setsu. The specimen 

 figured was sent by the late Mr. B. Schmacker (No. 60,378, 

 A. K S. P.). 



Clausilia caryostoma var. jayi nov. PI. XVII, figs. 3, 4, 5, 6. 



Shell rimate, fusiform, moderately attenuated above, glossy, 

 broAvn, distinctly and finely striate, a little more coarsely so on the 

 latter part of the last whorl. Whorls 10, moderately convex, the 

 last flattened and tapering. Aperture ovate-trapezoidal, the brown- 

 tinted peristome continuous, reflexed and thickened, shortly free 

 and not emargiuate above. Superior lamella rather small, oblique, 

 slender, marginal, continuous with the spiral lamella, which pene- 

 trates inward past the ventral side. Inferior lamella receding, in- 

 conspicuous in a front view, rather low and obliquely ascending 

 within, as long as the spiral lamella. Subcolumellar lamella vary- 

 ing from immersed to weakly emerging. Principal plica very long, 

 extending from a ventral position above the sinulus nearly to the 

 lip. Palatal plicae three, nearly ventral, the upper and lower long, 

 the intermediate one short and small. 



Length 13, diam. 2.9, length of aperture 3 mm. 



Length 12, diam. 2.8, length of aperture 2.8 mm. 



Clausilium (PI. XVII, figs. 4, 5) narrow, a little obliquely 



