238 Messrs. J. C. Melvill and J. H. Ponsonby on 



3. Helix [Macrocyclis) ccenotei-a^ sp. n. 

 (PL Xill. %. 2.) 



H. testa profunde umbilicata, declivi, depressa, viridescenti-cornea, 

 tenxn, nitidiuscula ; anfractibus quinque, supra striis irregulari- 

 bus dense cingulatis, ad basin nitidioribus ; apertura obliquo- 

 lunari ; peristomate simplici, tenui. 



Long. 10, lat. 17 mill. 



Hah. " S. Africa " {R. Trimen) ; Tliarfield {Dr. Schon- 

 lancl) . 



From the sources above mentioned we have received six 

 specimens of this species, which have been allocated to 

 Macrocyclis because of its general resemblance to H. van- 

 couverensis. Lea. This has been done on conchological 

 grounds only, for we have no opportunity of examining the 

 animal. 



4. Helix [Macroci/clis) liparoxantha^ sp. n. 

 (PI. XIII. fig. 3.) 



H. testa profimde umbilicata, teuui, nitida, oblique orbiculari-de- 

 pressa, aureo-cornea ; spira obtusa ; anfractibus quinque, con- 

 spicue regulariter costo-striatis, ultimo aufractu ad basin 

 impresso-excavato ; apertura ovata ; peristomate teuui, simplici. 



Long. 12, lat. (sp. majoris) 18-50 mill. 



Hah. Maritzburg (Burnup). 



Four specimens. This very beautiful sliell is allied to 

 H. ccenotera, just described, but is of a finer build altogether, 

 not quite so obliquely depressed, of a brighter shiny golden 

 colour ; umbilicus as deep, but narrower, and tiie two shells 

 cannot well be confounded when seen together. 



5. Helix {Pella) actinotricha, sp. n, 

 (PL XIII. fig. 5.) 



H. testa obtecte sed profunde umbilicata, superne planato-depressa, 

 pellucida, cornea, tenui, apice turbinato ; anfractibus quinque, ad 

 suturas impressis, convexiusculis, undique epidermide cornea con- 

 tectis, striato-liratis, ultimo setis quadriciugulato (setis ad et 

 infra jieripheriam longis, ad basin brevioribus, circa umbilicura 

 deniqua brevissimis) ; apertura semilunari ; peristomate tenui, 

 columellari ad basin angulato, apud umbilicum triangulatim 

 reflexo. 



Long. 5-50, lat. 9 mill. 



Hah. Maritzburg {Burnup). 



A most attractive little species, perhaps not quite adult; of 

 a delicate horny substance and colour, very fiattened at the 



