nexo Mollusca from South Africa. 239 



periphery and above, and with the apex of the last whorl 

 somewhat turbinate ; the whole shell covered with a pale 

 horny epidermis, everywhere striato-lirate. Around the 

 periphery most of these stria3 bear long bristles or setje, 

 which extend round the shell; just below also a second 

 series occurs, and further towards the base are two more 

 series, one with very short setee about midway and the other 

 nearer the umbilicus ; in this the bristles are shorter still. 

 We know no species at all nearly resembling this. 

 Two s[)eciraens. 



6. Helix (Pella) Burnupi^ sp. n. 

 (PL XIII. fig. 6.) 



H. testa profunde sed anguste umbilioata, depressa, fusco-cornea, 

 sericea, tenui, semipellucida ; anf ractibus quatuor, couvexis, 

 undiquo confertim obli(iue longitudiuaUter costoso-plicatis, ad 

 suturas compressis, ultimo compresso, subtus semiconvexo ; spira 

 depressa, apice obtusato ; apertura obliquo-Iunari, tenui ; peri- 

 stomate simplici, apud umbilicum reflexo. 



Long. 5, lat. 7 mill. 



Hah. Cope's Folly, near Maritzburg [Barnup). 



More depressed than H. hisculpta (Benson), but of allied 

 character, the whorls being very finely obliquely costo- 

 plicate, compressed at the sutures, the somewhat oblique 

 mouth thin, reflected at the columellar margin near the 

 imibilicus, Avhich is deep, but narrow. 



Several specimens. 



7. Helix (Pella) conisalea, sp. n. (PL XIII. fig. 7.) 



H. testa semipellucida, tenui, anguste umbilicata, albida, orbiculato- 

 depressa, spira convexa ; aufractibus quinque, convexis, angustis, 

 ultimo mox accrescente, longitudiiialiter deuse liratis, et undique 

 epidermide sericeo-setosa tenuissime contectis, setis brevibus 

 regulariter apud liras locatis, et ita dispositis ut lineaj quasi trans- 

 versa; videantur ; apertura luuari-oblonga, patula ; peristomate 

 tenui, membranaceo, apud margincm columellarom reflexo. 



Long. 5, lat. 0*50 mill. 



Hab. Maritzburg {Bw7iup). 



A little shell with the aspect of the British H. htspida, L., 

 or sericea, MiilL, but when examined with a lens the whole 

 pellucid surface is seen to be covered with a delicate epidermis, 

 and upon the longitudinal lira? are ranged with regular pre- 

 cision crowded short seta3, so straightly disposed as to give 

 the effect of transverse lines. The whorls are convex, five in 

 number ; umbilicus small, lip tliin, reflexed at the columellar 



