SUBULINA, WEST AFRICA. 75 



total length. Aperture rounded-oval, slightly subrhom- 

 boidal, quite oblique. Columella arcuate, a little obliquely 

 truncate. Peristome simple, sharp, the outer margin straight 

 in front. Length 12.5, diam. 3.75, aperture 3.5 x 2 mm. 

 (Girard). 



(Prince Island, at Quilala-Faluiha at 500 meters elevation 

 (F. Newton). 



Subulina moreleti GIRARD, Jornal Sci. etc Lisboa, 1893, p. 

 104, pi. 1, f. 12. 



This species seems to have much affinity to S. muscorum 

 Morel. [Man. Conch, xvii, p. 161], but seems to differ by the 

 more convex whorls, the last relatively a little smaller, and 

 the columella more arcuate (Girard). 



3. S. NEWTONI Girard. PI. 11, fig. 87. 



Shell subulate, thin, transparent, brightly glossy, pale 

 yellow, with excessively fine growth-striae which are quite ir- 

 regular. Spire composed of 9 nearly flat whorls, separated 

 by a well marked suture, and terminating in a rounded sum- 

 mit. Last whorl rounded, one-fifth the total length. Aper- 

 ture oval, slightly oblique, columella arcuate, very obliquely 

 truncate before reaching the base. Peristome simple, acute, 

 the margins joined by a weak parietal callus. Length 20, 

 diam. 4.5, aperture 4.5 x 2.5 mm. (Girard). 



Prince Island : Ferreiro Velho, S. Joas and Quilala Fal- 

 uiha, 1-500 meters elevatipn (Newton). 



Subulina newtoni GIRARD, Jornal de Sciencias Math., Phys. 

 e Nat. Acad. Real das sci. Lisboa, 1893, p. 104. pi. 1, f . 11. 



4. S. STRIATELLA (Rang). PL 11, fig. 89, 90, 91, 92. 



This shell is long, turrited, nearly cylindric, thin, trans- 

 lucent, with an epidermis of a slightly darkened dirty-yellow 

 shade, especially towards the summit. The surface is finely and 

 regularly striated throughout ; the summit is obtuse, and the 

 9 whorls are rounded, with the exception of the last one, 

 which is angular. The aperture is oval, small, its length 

 nearly parallel to the axis of the shell, but its plane quite 

 oblique. The columella is very concave and the right lip 



