new Mollusca froju South Africa. 129 



drical, delicate brown Pupa, eight- whorled, the apex being 

 very obtuse, the whorls impressed suturally and somewhat 

 ventricose, longitudinally very obscurely obliquely striate. 

 Mouth ovate; peristome white, reflexed, shining, furnished 

 with an acute scimitar-shaped parietal plait, deep-seated, 

 white, the columellar margin also being, though plain, some- 

 what thickened, as with an incipient process, towards tha 

 centre. 



Physa gradaia^ sp. n. (PI. VII. fig. 8.) 



P. testa parva, cornea, subpellucida, ovata ; anfractibus quatuor vel 

 quinque, apicali obtuso, cseteris infra suturas uniangulatis, pulchre 

 gradatis, undique longitudinaliter arete liratis ; apertura oblonga ; 

 peristomate tenui, paullulum reflexo, margine columellari crassi- 

 usculo. 



Long. 4-50, lat. 2 mm. 



Hal. Brickfields, Grahamstown {Farquhar, in coll. T, 

 Rogers) . 



A small, horny, subpellucent shell, oval in form, four- or 

 five-whorled, the whorls below the suture one-angled, gradate, 

 and longitudinally closely lirate ; aperture oblong, outer lip 

 thin, slightly reflexed, columellar margin sinuous, somewhat 

 tliickened. 



Four examples. 



Cyclophorus minimus, sp. n. (PI. VII. fig. 9.) 



C. testa depressa, planorbiformi, tenui, nitidiuscula, omnino epi- 

 dermide cornea contecta, apice mamillato ; anfractibus quatuor, 

 veutricosis, arctissime longitudinaliter tenui-liratis, ultimo 

 multiseriatim sed sparsim setigero, setis tenuissimis ; apei'tura 

 rotunda ; peristomate tenui, continuo, regione umbilicali patula, 

 depressa, lata. 



Alt. 1, lat. 2 mm. 



Hah. Maritzburg. 



Very small, yet full of detail. The shell is plaoorbiform and 

 much depressed, thin, somewhat shining, covered with a thin 

 corneous epidermis. Whorls, including the mamillate apex, 

 four, the last being much the largest ; they are ventricose and 

 entirely concentrically closely lirate, the last whorl possessing 

 scattered bristly hairs, evidently arranged in several rows, 

 but which have either worn off or only occur sparsely. The 

 aperture is round ; peristome thin, continuous ; umbilicus 

 open, wide, and depressed. 



Ten specimens, collected by Mr. Burnup. 



We have not seen the operculum. 



