neio Mollusca from South Africa. 93 



8. Pupa psichion, sp. n. (PI. T. fig - . 8.) 



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



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



mate incrassato, simplici. 

 Long. 2-50, 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 custodita, sp. n. (PI. I. fig. 9.) 



P. testa umbilicata, obesa, dolioliformi, minuta, tenui, bruunea • 

 anfractibus sex, ventricosis, arctissime longitudinaliter tenui- 

 striatis ; apertura ovata ; peristomate albo, reflexo, dentibus 

 quinque internis munito, altero parietali, altero columellari, tribus 

 labialibus. 



Long. 3, lat. 1*50 mill. 



Hab. Pretoria. 



Much the same in ventricose tumidity of whorl and super- 

 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 sutural, 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, tenuissimc 

 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. 



Hab. 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 omicronaria, sp. n. (PL I. fig. 11.) 



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

 uno specimine octo), ventricosis, tenuissime longitudinaliter 



