129 



Allied to P. Neritoides, but of a more oblong form, with a more 

 dilated aperture. 



15. Paludomus constrtctus. Pal. testa subpyramidali-ob- 

 longa, soHda, spira exserta ; anfractibus Icevibus vel obscuris- 

 sitne suJcatis, svperne concavo-constrictis ; olivacea, fascia nigro- 

 punctata, monili/ormi, versxts apicem picta ; apertura ovata, 

 callosa, alba. 



Hab. Mountain streams of Ceylon (Lai/ard). 

 This differs from P. conicu-s, to which it is most nearly allied, chiefly 

 by its more oblong and constricted form. 



16. Paludomus clavatus. Pal. testa oblongo-ovata, utrinque 

 attenuata, crassa, ponderosa, spira breviuscula, conica; anfrac- 

 tibus Icevibus conico-declivibus ; nigricanti-olivacea ; apertura 

 subdilatata, callosa, alba. 



Hab. Mountain streams of Ceylon (Layard). 

 Distinguished from P. ovatus in being more gradually attenuated 

 towards the apex. 



17. Paludomus bicinctus. Pal. testa globosa vel oblongo- 

 globosa, longitudinaliter subobscure sulcato-striata, spira brevi ; 

 anfractibus convexis superne subdepressis, et minute spiraliter 

 sulcatis ; olivaceo-fusca, nigricante obscure bifasciata ; apertura 

 albida. 



Hab. Mountain streams of Ceylon {Layard). 



Allied to P. decussatus, but of more acuminated growth. 



5. On the Painted Pig of the Camaroons (Potamoch(erus 



penicillatus). 

 By John Edward Gray, Ph.D., F.R.S., V.P.Z.S. etc. 



(Mammalia, PI. XXXIV.) 



This Pig was imported into Liverpool, where it remained some time, 

 being regarded as the common Cape " Bosch Vark." It was at length 

 purchased by the Society, and is one of the most interesting additions 

 made during the course of the present year to the very numerous 

 series of animals now in the Gardens. 



It differs in colour and proportions from the Cape " Bosch Vark," 

 but like it belongs to a very distinct group of Pigs from those 

 found in Europe and Asia, and from the Babyrussa of the Malay 

 Islands. 



In the 'Annals and Magazine of Natural History' for October 

 1852, I gave a short account of this animal, and formed a genus for 

 this group of African Pigs, to which I gave the name of Choiropota- 

 mus, describing the present species by the name of C. pictus, and it 

 is figured under this name in the ' Illustrated London News.' Since 

 these notices were published, I have found that it will be necessarj'^ 

 to change both these names ; the first because there is a genus of 



No. CCXLVI. — Proceedings of the Zoological Society. 



