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 



