376 



PROCEEDINGS OF THE ACADEMY OF 



[Nov., 



Length 10.4, diameter 3.3 mm.; 10 whorls, the tip lost. 



Haena, Kauai. 



It is as narrow as E. unibilicatum (Pse.), but has fewer ribs and the 

 spirals would not be called "remote." It is more slender than E. 

 decussatum, with more delicate ribs. 



Epitonium fucatum (Pse.) Fig. 11 a. 



It is broader, than Epitonium decussatum, clouded with brown in 

 the peripheral region, with rather strong ribs, 10 on the last whorl. 

 Interstitial sculpture and form of the whorls about as in decussatum. 



Honolulu Harbor. 



Length 14.5, diameter 5.8 mm.; 7 whorls remaining, the apex 

 lost. 



a b c d 



Fig. 11. — a, Epitonium fucatum b, E. kanemoe. c, E. ulu. f, E. oahuense. 



Dr. Dall suggests that this may be the unfigured Scalaria fucata 

 Pse. 



Epitonium ulu n. sp. Fig. lie. 



Related to S. crispata Pse., of the Paumotu group, but having the 

 delicate rib lets much more widely spaced. There are about 21 of 

 these thread-like riblets on the last whorl. The base is perforate; 

 columellar lip reflected below. Aperture rather trapezoidal, the 

 parietal callus thin, outer lip narrowly reflected. White. 



Length 14, diameter 5.8 mm.; 10 whorls, the tip lost. 



Hilo, Hawaii. D. Thaanum. 



Epitonium oahuense n. sp. Fig. lid. 



Resembhng E. turricula (Sowb.). The shell is mnbilicate, rather 

 thin, suffused and clouded with brown. Glossy, having thin riblets 

 with a few wider ones, 14 on the last whorl; in the intervals minute, 

 unequal engraved spiral hues may be seen. The whorls are in con- 

 tact, well rounded. The aperture is shortly ovate, peristome adnate 

 for a short distance above. 



