570 



PROCEEDINGS OF THE ACADEMY OF 



[Dec, 



pale yellow to a pale reddish-brown tint. Schmacker and Boettger 

 have already described the close, peculiarly waved or " vermiculate" 

 striation of the later whorls. Figs. 8, 9 are from Hotawa examples ; 

 fig. 4 is a smaller, eroded form from Arikawa. 



C. formosensis hotawana subsp. nov. PI. XXXII, figs, l, 2, 3. 



The shell resembles C. formosensis in its rather obesely fusiform 

 shape, convex whorls, close and sharp wavy striation, and in the 

 characters of aperture and interior; but it differs by being dark reddish- 

 brown or purplish-brown in color, the apical whorls yellowish- white, 

 lip white, interior of the mouth purple-brown. Old examples usually 

 lose the apical whorls. 



Length 28.0, diam. 7.8 mm.; whorls 8^ (apex entire). 



" 29.7, " 7.5 " " 8 remaining (decollate). 



Hotawa, Formosa. Types No. 90032 A. N. S P., from No. 1397 of 

 Mr. Hirase's collection. 



The locality Hotawa, given by us for C. swinhoei (Proc. A. N. S. Phila., 

 1905, p. 738), should be cancelled. The record was based upon the 

 specimens described above as C. /. hotawana. So far as we know, the 

 true C. swinhoei has not been found at that place, but only in the 

 extreme north of the island. 



Clausilia taiwanioa n. sp. PI. XXXII, figa. 5, 6. 



The shell is cylindric-turrite, very long and slender, dark purple- 

 brown, very glossy; sculpture of rather fine, low obhque striae, cut 



into long granules by spiral 

 impressions which cut the 

 strise only, and are noticeable 

 only on the later 3 or 4 whorls ; 

 striation not coarser on the 

 back of the last whorl. 

 Whorls 11 to 14, the earlier 

 ones convex, more or less 

 worn in adult shells; the last 

 3 or 4 whorls less convex, 

 last whorl compressed, nar- 

 rower than the preceding, 

 nearly straight-sided, rounded 

 basally. The aperture is 

 ovate, vertical, very dark in- 



Fig. 5. 



side; peristome pure white, broadly reflexed. Superior lamella high, 

 very obhque, marginal, continuous within with the spiral lamella, 

 which penetrates to a point above the upper angle of the aperture. 



