ABIDA. 295 



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

 it differs principally by its apertural armature, diverse in 

 number, form and position ( West . ) . 



26. ABIDA LEPTOSPIRA (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^-11, 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 1 / -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 



