neio Mollusca from South Africa. 93 



8. Pupa psichionj sp. n. (PI. T. fig. 8.) 



P. testa umbilicata, obesula, minuta, pallide brunnea, apice obtiiso ; 



anfractibus sex, tumidis, plauulatis ; apertura rotunda ; peristo- 



mate incrassato, simplici. 

 Long. 2oO, lat. 1-50 mill. 



Hah. Pretoria. 



A minute species, like haploa (M. & P.), but the whorls 

 are more tumid and only six in number. Mouth round, 

 peristome simple, toothless, and without plaits. 



9. Pupa custocUta, sp. n. (PI. I. fig. 9.) 



P. testa umbilicata, obesa, dolioliformi, minuta, tenui, brunuea ; 

 anfractibus sex, ventricosis, arctissime longitudinaliter tcnui- 

 striatis ; apertura ovata ; peristomate albo, reflexo, dentibus 

 quinque internis munito, altero parietali, altero columellari, tribus 

 labialibus. 



Long. 3, lat. 1-50 mUl. 



Hob. Pretoria. 



Much the same in ventricose tumidity of whorl and sujier- 

 ficial appearance to the P. psichion just described, but 

 entirely differing in the internal armature of the mouth, 

 which, apparently simple externally, is really guarded 

 within by no less than five teeth, three of these being labial, 

 one sutuval, and one columellar. It is a highly interesting 

 species, and seems, though of the fontana group, to bear no 

 very direct resemblance to hitherto described species. 



10. Pupa iota, sp. n. (PI. I. fig. 10.) 



P. testa minutissima, superficialiter umbilicata, cylindrica, recta, 

 tenui, apice obtuso ; anfractibus septem, ventricosulis, tenuissime 

 longitudinaliter striatis, striis obliquis ; apertura ovata ; peristo- 

 mate pallido, reflexo, uniplicato, plica, interna transversa fere 

 aperturam ipsam attingente. 



Long. (sp. maj.) 1'25, lat. -50 mill. 



Hah. Pretoria. 



Two specimens, one being more curt than that taken as 

 the type, but the mouth-process, consisting of one median 

 raised transverse internal plait not quite reaching the 

 peristome, is the same in each. 



11. Pupa omicronariaj sp. n. (PI. I. fig. 11.) 



P. testa minuta, cylindrica, recta, brunnea ; anfractibus septem (in 

 uno specimine octo), ventricosis, tenuissime longitudinaliter 



