Mr. W. H. Benson on Land Shells from the Mauritius. 99 



type in its tooth, costulation, &c., although not closely allied to 



any of them. 



Helix setiliris, nobis. 



Testa perforata, convexo-depressa, non nitente, sub lente oblique 

 confertim striatula, costulis undulatis remotiusculis setiferis mu- 

 nita, translucente, rufescenti-cornea ; spira breviter couoidea, apice 

 planiusculo, nitido, sutura impressa; anfractibus 6-6 1 convexis, 

 arete convolutis, ultimo medio subangulato, subtus convexo ; aper- 

 tura obliqua, subquadrato-lunata, peristomate reflexiusculo, intus 

 labiato, infra incrassato, subduplici, marginibus callo parietali plica 

 longa marginali sinuata elevata muuito, junctis, columellari si- 

 nuato, introrsum obsolete tubercidato. 



Diam. major 7, minor 6^, axis 4 mill. 



Habitat in sylvis iusulse Mauritii cum praecedente. 



A very beautiful and peculiar little species, in form and aper- 

 ture approaching the European type to which H. Cobresiana 

 belongs, and with a parietal callus somewhat similar to that of 

 H. plectostoma of Trans-gangetic India. The marginal plait of 

 the callus is suddenly bent inwards below the insertion of the 

 outer lip ; it is there largely bowed outwards, and then gradually 

 bends inwards to the insertion of the columellar lip. There is 

 a slight inclination towards the formation of a tooth on the 

 descending columellar margin, at the part where it is exhibited 

 in H. Caldwelli. The regular undulate riblets are closely set 

 with short hairs, and more distant longer white ones. Dis- 

 covered by Mr. Caldwell in the same quarter as the preceding 

 species. 



Bulimus vesiculatus, nobis. 



Testa anguste rimato-perforata, ovato-acuta, oblique rugulosa, rugis 

 subtus dense pustulato-rugosis, fulvo-castanea ; spira convexo- 

 couica, dimidium testae superante, apice obtusiusculo, sutura im- 

 pressa ; anfractibus ^\ convexiusculis, ultimo circa umbilicum 

 compresso ; apertura ovata, ^ longitudinis testae sequante, peri- 

 stomate reflexiusculo albido, margine parietali dente angulari ob- 

 tuso munito. 



Long. 13, diam. 7, apert. 6 mill, longa. 



Habitat in insula Mauritii, rarissime. 



The single specimen received has part of the subreflected lip 

 broken away. It is apparently allied to B. reticulatus, Reeve, 

 of West Africa, but has a more conical spire ; and the parietal 

 tubercle shows an affinity with Bulimus Puj^a of the Mediterra- 

 nean, and the Indian B. tutulus and coenopictus. It is a curious 

 fact in the geographical distribution of species, that a shell, not 

 to be distinguished specifically from B. coenopictus, was collected 

 by Mr. Edgar Layard at Mogambic, and that a variety of Bulimus 

 punctatus, Anton, occurred to hiui at the same place as well as at 



7* 



