810 MR. H. B. PRESTON ON NEW GENERA AND 
simple, receding below ; aperture obliquely and depressedly 
crescentic, 
Alt. 6, diam. maj. 11°75, diam. min. 10 mm. 
Aperture : alt. 5:25, diame 5 mm. 
Hab. Larogi Hills, British East Africa, at an altitude of from 
6000 to 7000. feet. (A. Blayney Percival.) 
EXPLANATION OF THE PLATES. 
Pram Te 
Hess eem solace Ledoulwia crassiplicata, sp. n. 
2 + eussoensis, Sp. 1. 
3. “- levistriata (Preston), var. nyeriensis, var. 1. 
4, + elganensis, Sp. 0. 
5 3 marsabitensis, Sp. i. 
6 +) Jingaénsis, sp. 1. 
is bs decussata, sp. 0. 
8. 7 adjacens, sp. Nn. 
9,9a,9b. Falloonella exquisita, sp. n. 
10. a A gudei, subsp. n. 
iil ays Wallop 4 lavogiensis, sp. N. 
124,126. Percivalia nyiroénsis, sp. n. 
13.4,136,13¢. Nakuruélla soror, sp. n. 
14, Burungaélla mutandana, sp. 0. 
15. or imperforata, sp. 0. 
16. 3% buhambaénsis, sp. 0. 
17 a, 176, 17 ¢. Bs oscitans, sp. N. 
18. Blayneyella microspiralis, sp. n. 
19 a,19 6,19. Ff percivali, sp. n. 
20 5 purpureocincta, sp. N. 
21. xy kisengiensis, Sp. ll. 
22,22 6, 22c. Larogiella venatoris, sp. n. 
23. malasanjiensis, Sp. i. 
Prate II. 
Figs il Larogiella angulifera, sp. n. 
2. a kombaénsis, sp. ii. 
3. ” fonticula, sp. n. 
4, Africarion oscitans, sp. N. 
5a,5b. EHlgonella flavidula, sp. n. 
6a, 6b. a angustior, sp. 1. 
Wl i, Wh (i 5 discolorata, sp. n. 
8a, 8b. 2 oribates, sp. 0. 
9a,9b, 9c. 50 euloteformis, sp. ni. 
10a, 106. 9 robini, Sp. 0. 
lla, 116. “3 brunned, sp. N. 
12a, 12.6. sobrina, sp. 0. 
13. Afr icarion copiosa, sp. 0. 
14, 3 marsabitensis, sp. N. 
15. 5 orestias, sp. Nn. 
16. 6 kiduhaénsis, sp. . 
ie o spatiosa, sp. n. 
18. = kagambahensis, sp. n. 
19. x tenebrosa, sp. n. 
20. concavospira, Sp. I. 
21. Trochozonites expatriata, sp. n. 
22. 53 kempi, sp. 0. 
23: at buhambaeénsis, sp. 0. 
24. suturalis, sp. n. 
25. Mikenoélla elevata, sp. Nl. 
26 a, 26 b, 26.¢. . ahena, sp. 0. 
27. BA neglecta, sp. nl. 
St ee. 
