FERUSSACIA, SECTION PEGEA. 265 



58. F. TENELLA ('Ancey' Westerlund). 



Shell slender, very thin, elongated, very glossy, light corne- 

 ous. Spire moderately long, obtuse, whorls 6, somewhat con- 

 vex, the upper regularly increasing, the fourth somewhat larger, 

 the penultimate suddenly large with very oblique suture; last 

 whorl oblong, large, nearly cylindric. Suture linear, margined. 

 Aperture long, narrow and long in the upper part, wider below; 

 outwardly nearly straight, base arcuate, no parietal lamella. 

 Columella straight within, moderately thickened, white, tooth- 

 less, hardly truncate, forming a weak angle with the base. 

 Outer lip moderately acute; the margins connected by a dis- 

 tinct glossy callus. Outer lip strongly produced forward be- 

 low the middle, at the base retracted. Length 8, diam. 2.5, 

 aperture 3.66 mm. (Westerl.) 



Algeria: Forest of Feruane, between Ben-Chikoa and Ber- 

 zouaghia. 



Cionella tenella Ancey mss. , WESTERL. , Fauna etc. , Supplem. , 

 p. 48, 1890. 



59. F. WESTERLUNDIANA ( ' Ancey ' Westerlund). 



Shell slim, cylindric-elongate, very glossy, reddish-corneous. 

 Spire somewhat attenuate above, with rather obtuse apex. 

 Whorls 6, somewhat convex, the first three regularly increasing, 

 the fourth larger, the penultimate large, the last somewhat 

 elongate. Suture bordered below, very oblique between the 

 penult, and the last whorls, more horizontal near the mouth. 

 Aperture elongate, narrow and long above, without a parietal 

 tooth, but having a small, scarcely projecting tubercle deep 

 within; margins delicately united. Columella scarcely thick- 

 ened within, nearly straight, vertically truncate, not dentate. 

 Peristome blunt, the outer lip vertical, arcuate and produced 

 forward below the middle, retracted at the base. Length 7.5, 

 diam. 2.5, aperture 3.33 mm. (Westerl.}. 



Kabylia: Fort National. 



Oionella westerlundiana Ancey, WESTERLUND, Fauna, etc. 

 Supplement, p. 48, 1890. 



