Mr. W. H. Benson on some species of Cyclophorus. 413 



striisque obliquis teneribus decussata ; sub epidermide fusca, tenui, 

 albida ; superne castaneo flexuoso-strigata, fascia nulla medians 

 cincta ; spira turbinata, apice obtusulo, rufesceute, suturis di- 

 stinctis. Anfractibus 5 convexis, ultimo rotundato. Apertura vix 

 obliqua, subcirculari, superne angulata ; peristomate simplici, tenui, 

 expanso, reflexiusculo, vix continuo, margine columellari umbilicum 

 non pervium subtegente. 



Diam. major 25^, min. 20, alt. 17 mill. Apert. intus 13 mill, longa. 



Hah. ad Bliamoury, ad pedem montium Rohillano-Himalavanorum. 

 Detexit W. J. M. Boys. 



This is the most northerly Cyclophorus known. It was dis- 

 covered by the late Captain W. J. M. Boys, an indefatigable 

 collector in several branches of zoology, and the discoverer of 

 the genus Boysia, Pfr., by whose recent decease, as well as by that 

 of Dr. J. F. Bacon, another Indian collector of great experience, 

 science has sustained a severe loss. 



This shell differs from the pale-lipped C. pyrotrema, in which 

 the aperture is not fully developed, by its more globose form, 

 ventricose last whorl, small impervious umbilicus, more regular 

 sculpture above, stronger sculpture below, thinness, pale colour, 

 and the absence of any medial fascia. From the pale-lipped 

 variety of C. Stenomphalum with undeveloped peristome, it differs 

 by the greater breadth of the aperture in proportion to its length, 

 its non-pervious umbilicus, the absence of any carina at the 

 periphery, the more closely sulcate and regular sculpture above, 

 the extension of the sculpture on the under side into the umbi- 

 licus, its pale suite of colours, and by the absence of any colour- 

 ing below the periphery. From C. Indicus it may be known by 

 the absence of keel, suite of colours, sculpture, and aperture. 



4. Cyclophorus Tryblium, nobis. 



Testa subaperte umbilicata, depresso-turbinata, solida, superne costis 

 7-8 planulatis munita, albida, castaneo marmorata, subtus laevigata, 

 versus periomphalum albida, fascia nigricante ad periphseriam 

 ornata ; spira turbinata, superne rubella, apice acutiuscula. An- 

 fractibus 5 convexis, ultimo subdepresso, obsolete angulato, subtus 

 valde convexo ; umbilico prof undo, infundibuliformi. Apertura 

 vix obliqua, subcirculari, intus lutescente; peristomate subsimplice, 

 continuo, breviter adnato, pallide aurantio, subincrassato, superne 

 angulatim adscendente, margine dextro subrevoluto, columellari 

 subexpanso, planato. Operc. 1 



Diam. major 47, minor 38, alt. 29 mill. Apert. intus 20 mill, longa. 



Hab. ad Darjiling. Detexit H. Chapman. 



I find a single specimen, not in fine condition, among shells 

 kindly collected at my request by Dr. Chapman, to whom I was 

 also indebted for the first known specimen of Meg. funiculatum. 



