ABIDA. 295 



ally related to Pupa lilietensis Bof., of Catalonia, from which 

 it differs principally by its apertural armature, diverse in 

 number, form and position (West.). ' 



26. ABIDA LEPTOSPIBA (West.). Shell slender, cylindric- 

 turrited, very slowly tapering above, with obtuse apex, very 

 closely, beautifully striate with hair-fine striae, with a matt 

 satin luster, dark horn-yellow, thickened and broadly white 

 near the aperture. Whorls 9%-ll, convex, slowly increasing, 

 the last ascending, contracted behind the peristome, bluntly 

 carinate below. Suture impressed. Aperture elliptic-rounded, 

 with 8 lamellae and plicae: 2 parietal lamellae, the upper one 

 minutely doubled ; columellar lamellae 2, the upper very long, 

 emerging quite to the margin, the second shorter; palatal 

 plicae 4, the first very short, immersed, the rest penetrating 

 only to the middle of the whorl ; second and third marginal, 

 very weakly S-shaped. Peristome continuous, the connecting 

 callous thick, white, very narrowly reflected throughout, 

 lipped. Length 7%-8, diam. 2 mm. (Pupa leptospira Wes- 

 terlund, Fauna, iii, 1887, p. 113, no. 79.) France: Axat 

 (Aude), Fagot. 



27. ABIDA MIGMA (West.). Shell openly, roundly perfor- 

 ate, cylindric-conic (gently narrowed conically from the 

 middle up, the sides a little convex), delicately, densely and 

 elegantly striate, corneous. Whorls 9%, slowly and regularly 

 increasing, the upper more strongly, lower more slightly con- 

 vex, the last crested-compressed at the base. Aperture oval, 

 the peristome continued as an acute, elevated callous. An- 

 gular fold furnished with a tubercle in the angle; parietal 

 fold immersed; columellar lamellae 2, the first submarginal, 

 second shorter ; 3 long marginal palatal laminae, the first and 

 second penetrating inward to above the perforation, somewhat 

 abrupt at the beginning, then strong at the end; the third 

 basal. Length 8, width 2 mm. (Pupa migma Westerlund, 

 Verh. zool.-bot. Ges. Wien, xlii, 1892, p. 37.) 



France, in the eastern Pyrenees. It shares the last division 

 of the Pupa affinis group with P. leptospira, and differs from 

 that by the open perforation; the shape, which is cylindric 

 below, conic above the middle; the weakly convex later 

 whorls ; the palatal plicae being only three in number but much 

 more deeply penetrating, at first broken off, the strong, sharp 

 (not thickened) parietal callous of the peristome, etc. (West.). 



28. ABIDA ATTENUATA (Fagot). This species, which will be 



