PARTULINA, MAUI. 63 



Waihee, partly of more swollen shells, with more or less straw 

 or brownish tint. One of the white shells has dark bands at 

 periphery and columella. On another there are very faint 

 tawny stripes. 



33 P. t. attenuata (Pfeiffer). PI. 15, fig. 3. 



Shell subperforate, ovate-turrited, rather thin, striatulate and 

 under a lens granulate, white, painted with corneous streaks 

 which are often angular. Spire concavely turrited, the apex 

 rather obtuse, suture distinctly thread-margined, whorls 5J-, the 

 upper flat, those following convex, last whorl about three- 

 sevenths the total length, rounded, base subcompressed. Aper- 

 ture oblique, subtetragonal-auriform ; columellar fold strong, 

 compressed, tongue-shaped; peristome acute, narrowly ex- 

 panded, labiate within, basal margin forming an angle within 

 with the dilated columellar margin. Length 16, diam. 7-J mm., 

 aperture with peristome 7J- mm. long, 4 wide. Maui, Frick 



(flW- 



The type figure is copied, pi. 15, fig. 3. The smaller size 

 and narrower form distinguish it from terebra and lignaria. 

 Type locality unknown. 



335. Var. longior n. v. (pi. 15, fig. 12). Straightly pyramidal, 

 whitish with a pale yellow tint, the last embryonic whorl 

 generally having faint stripes, and under a lens very faint yellow 

 streaks may often be seen on the last whorl. Surface with but 

 little gloss, and usually deeper spiral sculpture than in the 

 smaller var. corusca. 



Length 22, diam. 10J mm. 6f whorls. 



Length 22, diam. 10 mm. 7J- whorls. 



Wailuku (Gulick); also Waiehu (Baldwin). 



33c. P. t. lignaria (Gulick). PI. 15, figs. 13 to 17. 



"Shell dextral, perforate, ovate-conic, solid, more or less 

 shining, microscopically minutely decussated, yellowish ivory- 

 white, sometimes streaked; apex subacute, white, obliquely 

 marked with brownish-yellow; spire regularly conical, suture 

 moderately impressed, scarcely margined; whorls 6J, somewhat 



