162 TOBNATELLINA. 



T. dentata is the neanic stage of T. oblonga, according; to 

 the type <and a paratype now in the Museum of Comparative 

 Zoology (no. 28918), and which we have examined. The 

 original description follows. 



T. dentata Pease. ; ' Shell oblong-ovate, thin, fragile, glossy, 

 smooth, fulvous-corneous. Whorls 4%, convex, suture im- 

 pressed. Aperture small, acutely oblong-ovate, provided with 

 a strong compressed prominent parietal lamella. Columella 

 strongly callous, twisted, slightly compressed, provided in the 

 middle with a prominent tooth. Length 2.5, diam. 1.25 mm. 

 Hawaii " (Pse.). 



Tornatellina dentata PEASE, Proc. Zool. Soc. Lond., 1871, p. 

 460. PFR., Monogr., viii. p. 317. ? SYKES, Fauna Hawaii- 

 ensis, Moll., p. 381. 



' * The peculiarity of this little species is that the columella, 

 in addition to the usual callosity, which in this species is 

 somewhat compressed, is furnished with a prominent tooth 

 on its middle" (Pease). 



Species of Polynesia and Micronesia. 

 20. T. OBLONGA -Pease. PL 36, figs. 5, 6, 8-11. 



Shell long, turrite, thin, the sides straight, apex rather ob- 

 tuse; brownish-yellow, glossy, very lightly marked with 

 growth-wrinkles. Whorls 6, convex. Aperture very small, 

 oblique, ovate ; outer lip simple. Columella lightly thickened, 

 nearly straight and vertical, or only slightly sinuous, in front 

 view, but in profile view it is seen to arch forward at the base 

 (figs. 6, 10). Parietal lamella small, a half -whorl long. 

 Length 3.5, diam. 1.5 mm.; aperture 1.3 mm. (Huaheine). 



Society Islands: Huaheine, type loc. ; also Tahiti (Garrett), 

 Baiatea and Boraibora (Gfodeffroy Exped.). Marquesas' (Gar- 

 rett, C. D. Voy). Austral Is. : Burutu. Samoan Is. Fiji Is. 

 (Garrett). Ellice Is.: Funafuti (Hedley). Tonga Is.: Fu- 

 tuna (Dr. Graeffe). Annaa (Pease). Mauiki, Hervey Is. (C. 

 D. Voy). Hawaiian Is.: see p. 160. 



Tornatellina oblonga PEASE, Proc. Zool. Soc., 1864, p. 673 ; 

 Journ. de Conchyl., 1871, p. 93 ; Proc. Zool. Soc., 1871, p. 473. 



