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



Ennea Cairnsi, sp. n. (PI. XVIT. fig. 1.) 



E. testa curta, cylindriformi, paium rimata, albida, apice obtusis- 

 simo ; anfractibus octo, siiperioribus angustis, paullum ventri- 

 cosis, tribus ultimis roctis, uiidique longitudinaliter obliqui- 

 striatis ; apertura rotunda ; peristomate albo, incrassato, denlibus 

 plicisve quinque muinto, plica parietali permagna, crassa, valde 

 intrante, dentibus labialibus diiobus, quorum iuleriore majorc, 

 deute basali parvo, plica columcllari plus minusve superficiali, 

 parum iutrante, uec mammseformi. 



Loug. 8, lat. 4 mm. 



Bab. Mouth of the Buffalo River, S. Africa (e coll. 

 B. Cairns^ Esq.). 



A short, cylindrical, whitish species, of very neat appear- 

 ance, extremely obtuse towards the apex, the whorls eight in 

 number, narrow, the three lowest being straight. They are 

 entirely longitudinally obliquely striate ; the aperture is 

 rounded ; peristome white, thickened, furnished with five 

 plaits or teeth — of these the parietal is the most conspicuous, 

 being thickened and deeply penetrating ; the labial teeth are 

 two, the lower the larger ; the basal tooth is similar to the 

 upper labial, small and simple ; the columellar plait does not, 

 as in the majority of the South-African Ennece, seem deep- 

 seated or mamillar, but superficial and simply plaited. 



We have pleasure in naming this interesting form after 

 Mr. Robert Cairns, Ashton-under-Lyne, who communicated 

 it to us for description. Three specimens. 



Ennea Burnupi, sp. n. (PI. XVII. fig. 2.) 



E. testa cylindrica, anguste sod profunda rimata, apud apicem 

 attenuata, obtusa, albida; anfractibus novem, apud suturas 

 impressis, parura ventricosis, undique longitudinaliter obliqui- 

 striatis ; ajjcrtura rotunda ; peristomate incrassato, dentibus pli- 

 cisve quinquemunito, videlicet, plica parietali magna, acinaciformi, 

 intrante, dentibus labialibus duobus, (juorum inferiore majorc, 

 dente basali acuto, parvo, plica culumellari interna, acuto- 

 mamillata. 



Long. 8, lat. 4 mm. 



JJab. Town Bush, Maritzburg, and Gordon Falls, on the 

 Zwaartkoj) j\Iountain, Natal. 



A pretty form, which comes in the same category as 

 E. regularis and aperostorna, described by us in former years 

 from the same neighbourhood. The last-named species 

 diifers, however, m toto in shape, being not so attenuate 

 apically, but more evenly cylindrical throughout, and E. regu- 

 laris is more compressed at the sutures, only six-, as against 



