On new Mollusca from South Africa. 125 ear from meatus 15. Averages and extremes of the six specimens : total length 88-5 (86-96) ; tail 32-7 (30-36) ; tibia 15 (14-6-16) ; foot (with claws) 9-1 (8-5-10); forearm 39 (38-6-39-4) ; longest finger 62*3 (61-64). Remarks. — The membranes, feet, wings, and ears of Myotis pemnsularis agree closely with those of M. velifer so far as can be determined from skins alone. The extremely short tail of the new species appears to be its most strongly marked character. The measurements of the tails, together with the total length, foot, and ear, were taken in the flesh by three different collectors (Loye Miller, J. F. Abbott, and D. Coolidge), and their uniformity under these circumstances precludes any likelihood of error. In the brown phase the colour is much like that of Myotis velifer^ but in the tawny phase it much more closely resembles M. californicus and M. thysanodes. The five paratypes of Myotis peninsular is have been presented by the British Museum to the United States National Museum, where they are catalogued as numbars 93552 to 93555. XVIII. — Descriptions of Nine new Species of Terrestrial and Fluviatile Mollusca from South Africa. By James CosmO Melvill, M.A., F.L.S., and John Henry Ponsonby, F.Z.S. [Plate YII.J In this, the fourteenth communication we have ofiPered on this subject during the past few years, we are especially gratified to be able to record a second species of Hapalus. A very minute, but beautifully sculptured Cyclophorus is likewise included, and others which, though small, will all be of interest to students of the South-African terrestrial fauna. We should like to take this opportunity of mentioning that a contribution towards a Catalogue of the non-Marine Molluscan Fauna of this region has been prepared by us, and will shortly be published in the ' Proceedings of the Malaco-logical Society of London ' ; and we may be permitted to indulge the hope that such a list may help to pave the way for a more comprehensive and critical work on the subject. Trachycystis lignicola, sp. n. (PI. VII. fig. 1.) T. testa depresso-globosa, umbilicata, tenui, cornea, supra sub-planata ; anfractibus sex, ventricosis, undique longitudinaliter Ann. <i-Mag. N. Hist. Ser. 7. Vol. ii. 10
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