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Show 582 MR. EDGAR A. SMITH ON LAND-SHELLS [May 2, 8. STREPTAXIS KIRKI Dohrn. (Plate XXXIII. figs. 7, 8.) Streptaxis kirkii, Dohrn, Proc. Zool. Soc. 1865, p. 232; Martens Weichth. Deutsch-Ost-Afrikas, p. 32. Hab. Zomba Plateau, 5000 feet. 9. HELICARION NYASANUS, sp. nov. (Plate XXXIII. figs. 9,10.) Testa tenuissima, pellucida, albida, vix nitens, lineis incrementi leviter plicatis striata, depressa, ambitu subovata ; spira depressa, apice obtuso, prominulo ; anfractus tres, convexi, infra suturam depresse marginati, margine subcrenulato, ultimus subtus in medio membranaceus; apertura fere horizontalis, latissime ( lunata. Diam. mag. 16 millim., min. 11, alt. 7-§. Hab. Mount Chiradzulu, Masuku Plateau, 6000-7000 feet, and Nyika Range, 7000 feet. Very thin, depressed above, membranaceous beneath at columellar margin, with somewhat plicate lines of growth. 10. HELICARION MASUKUENSIS, sp. nov. (Plate XXXIII. figs. 11,12.) Testa H . nyasano minor, minus depressa, rotundior, minus fragilis, infra haud membranacea, lineis incrementi minus plicatis; apertura angustior, margine columellari ad insertionem incras-sato, albo, refiexo, rimam umbilicalem formanle, margine externo callo tenuissimo juncto. Diam. mag. 14 millim., min. 10|, alt. 7. Hab. Masuku Plateau, 6000-7000 feet, Nyika Range, 7000 feet, Mount Chiradzulu and Zomba Plateau, 5000 feet. The whorls, as in H. nyasanus, are three in number, but the spire is a little more elevated. 11. KALIELLA BARRAKPOKENSIS Pfeiffer. Helix barrakporensis, Pfeiffer, Proc. Zool. Soc. 1852, p. 156; Conch.-Cab. ed. 2, p. 415, pl. 147. figs. 20-22; Reeve, Con. Icon. fig. 816 ; Tryon, Man. Conch, ser. 2, vol. ii. p. 61, pl. xxvi. figs. 57, 58; Godwin-Austen, Land & Freshwater Moll. India, vol. i. pp. 2, 19, 146, pis. i., ii., v., xxxviii. Helix (Trochonanina)pretoriensis, Melvill & Ponsonby, Ann. M a e Nat. Hist. 1890, vol. vi. p. 469. Hab. Mount Chiradzulu. Occurring also in North and South India, Madagascar, Pretoria, S. Africa, and Ashanti. Specimens from these localities, which I cannot in any way separate, are in the Museum Collection. They doubtless have been transported from place to place, as seems to have been the case with the well-known Eulota similaris and various species of Subulina and Opeas. 12. THAPSIA MIXTA, sp. nov. (Plate XXXIII. figs. 13,14, 15.) Testa pallide cornea, anguste perforata, depressa, orbicularis nitida, lineis incrementi inconspicuis striisque spiralibus micro- |
