314 PROCEEDINGS OF THE ACADEMY OF [DeC, 



Length 2.45, cliam. 0.85, length of aperture 0.6 mm.; 6| post- 

 nuclear whorls. 

 Turboniila (Chemnitzia) kahoolawensis n, sp. 



North shore of Kahoolawe. Type No. 116179, A. N. S. P., coll. 

 by Pilsbry, 1913. 



The shell is similar to T. oblectamentum except in the following 

 characters. It is relatively narrower. The ribs are similar but 

 more numerous, about 30 on the last whorl, and as wide as the 

 intervals. The suture is very deeply impressed, a little more chan- 

 nelled than in the other species. The nuclear whorls are too much 

 worn to show the shape well. The lateral outlines of the spire are 

 distinctly convex. 



Length 3, diam. 0.85 mm.; 7| post-nuclear whorls. 



Turboniila (Turboniila) kauaiensis n. sp. Fig. 7. 



Haena, Kauai. Type No. 117626, A. N. S. P., coll. by W. A. and 

 E. L. Bryan; paratype in Bryan coll. 



The shell is slender, the diameter contained about 3^ times in the 

 length, nuclear whorl elevated, smooth. Subsequent whorls are 

 slightly convex, sculptured with smooth, straight, rounded vertical 

 ribs, equal to their equally smooth intervals, and 24 in numl^er on 

 the penult whorl. On the last w^iorl the ribs extend upon the base, 

 but weaken there. Aperture is rhombic, the columella stout, very 

 weakly sinuous. 



Length 2.75, diam. 0.8, aperture 0.6 mm. ; 7h post-nuclear whorls. 



This very minute species differs from T. kahoolawensis by the 

 simple suture, the extension of the vertical ribs upon the base, and 

 the nearly straight outlines of the spire. 

 Turboniila (Chemnitzia) tbaanumi Pils. and Van. 



1908. Turboniila {Chemnitzia) thaanumi P. and V., Nautilus, vol. 22, 

 p. 58, fig. 3. 



Hilo, Hawaii, D. Thaanum. 



This minute shell differs from the preceding by the abrupt termina- 

 tion of the intercostal valleys on the last whorl. 

 Turboniila (Evaletta) elizabethae n. sp, Fig5. 9, 9o. 



Waianae, Oahu. Type and paratypes No. 117596, A. N.' S. P., 

 coll. by W. A. and E. L. Bryan; paratypes in Bryan coll. Also 

 from Waikiki beach (Stearns), Honolulu Harbor, Paumalu, Mokapu 

 Point (Bryan), and Kahala (Mrs. Letson), Oahu. Haena and 

 Hanalei River, Kauai (Bryan), Kailua, Kona coast of Hawaii 

 (Bryan), Laysan Island (Bryan). 



The shell is subulate, the upper third or half pink, the rest white. 



