TRUNCATELLINA OP CENTRAL AFRICA. 89 



21. TRUNCATELLINA BLANFORDI (Jickeli). PI. 9, figs. 10 to 13. 

 The minute shell is perforate, cylindric, somewhat con- 

 tracted towards the base, brown, with an oily luster, and 

 covered with close, somewhat oblique, longitudinal riblets, 

 which are seen only under a lens, as in the two preceding 

 species. The 6 convex whorls increase regularly and are 

 separated by a rather deep suture ; last whorl rises a little to 

 the aperture in front and is lightly compressed at base. The 

 aperture is scarcely oblique, ovate. Bather deep within there 

 is a small, pointed denticle. The columella is lightly bowed ; 

 in the middle a hardly noticeable swelling, which may be re- 

 garded as the beginning of a tooth, is perceptible. The palate 

 is entirely unarmed. The peristome is whitish, slightly thick- 

 ened and reflected ; the margins converge. Length 1%, diam. 

 %, aperture alt, %, width a /2 mm. (Jickeli) . 



Abyssinia: Habab, in the gorge of Asqaq, on Nakfa, 5664 

 ft., on rotten wood ; also on the descent of Nakfa at the vil- 

 lage Sykk (Jickeli) 7 specimens. 



Pupa blanfordi JICKELI, Nova Acta, vol. 37, 1875, p. 127, 

 pi. 5, f. 17. 



In shape and striation it agrees with P. schilleri, in the 

 umbilicus with P. lordea; otherwise it differs from both of 

 these as well as from P. strobeli, claustralis and salo-nensis by 

 the absence of palatal and columellar folds (Jickeli). 



V. CENTRAL AFRICAN SPECIES. 



Certain species supposed by Mr. Preston to belong to Ennea 

 appear to be Truncatellinae, so far as one can judge from the 

 figures and poor descriptions. I have not seen the shells. 



22. TRUNCATELLINA NAIVASHAENSIS (Preston). PL 9, fig. 21. 

 Shell minute, cylindrical, yellowish-white; whorls 7, the 



first 3 rapidly increasing; the last elongately strangulate be- 

 hind the outer lip, sculptured with oblique, moderately dis- 

 tant riblets ; suture impressed ; columella vertically descend- 

 ing, outwardly expanded over the umbilical area; labrum 

 slightly reflexed especially below; aperture somewhat irreg- 

 ularly triangular, edentulate. Alt. nearly 2, diam. 0.75 mm. 

 (Preston). 



