Mr. W. H. Benson on new species of Helices. 215 



angulato-lunari, subsecuriformi ; peristomate tenui, simplice, mar- 



gine columellari superne brevissime reflexo. 

 Diam. major 22, minor 1 9, alt. 1 1 mill. 

 Hab. in sylvis ad apicem montium " Nilgheries," Indise meridionalis. 



Jerdon. 



This form seems to rank between the perforate H. anceps, H. 

 Indica, &c., and the umbilicated H. Guerini, H. retifera, &c. At 

 first sight it has the aspect of a depressed and much-carinated 

 dextrorse Helix interrupta, Bens., a species which is, however, 

 invariably sinistrorse. , „, 



5. Helix regalisy nobis, n. s. 



T. perforata, sinistrorsa, conoideo-depressa, carinata, eleganter fasciata 

 vel unicolori ; anfractibus 6, angustis, subplanatis, supra striis acute 

 corrugatis, obliquis, strias spirales decussantibus, medianis obsolete 

 noduloso-costatis, ultimo carinato, carina infra compressa, subtus 

 nitido, convexo, radiato-striato, striis circularibus versus umbilicum 

 obsoletis ; periomphalo excavato ; apertura obliqua, subsecuriformi, 

 peristomate acuto, margine inferiori arcuato, versus umbilicum 

 sinuato, columellari brevissime reflexo. 



The following is a more extended description of the differences 

 observable in the specimens examined : — 



A. costis inconspicuis ; anfractibus supra fascia media luteo-fusca, 

 utrinque linea fusco-nigra marginata, fasciisque albido-csesiis mar- 

 ginalibus ornatis, ultimo subtus fascia media, cinereo-lutea, lata, 

 utrinque fascia angusta purpureo-fusca cincta, margine albido, pe- 

 riomphalo albido-luteo. 



B. unicolori, extus intusque purpureo-fusca, costis magis conspicuis. 



Diam. maj. 27, minor 25, axis 13 mill. 



Hab. ad Sarawak, Insulae Borneo. Teste W. Taylor. 



A couple of specimens of each variety, found on the ground, 

 in jungle, near Sir Jas. Brooke's house at Sarawak, were brought 

 to England by Lieut. W. Taylor, Madras Artillery, to whom I 

 am indebted for an example of each kind. The subnodulous 

 costate appearance of the whorls, above the ultimate one, forms a 

 very peculiar feature in this handsome sinistrorse species. 



The following corrected and more extended characters of a 

 fine and remarkable East Indian Helix, published by me in the 

 Journal of the Asiatic Society of Calcutta for 1836, and copied 

 thence into Pfeiffcr's ' Monograph/ will not be out of place here. 



(j. Helix Oxytes, nobis. Amended character. 



T. late umbilicata, orbiculari, depressa, oblique subplicata, ferrugineo- 

 cornea, spira convexa, apice planato ; anfractibus 5£ subplanatis, 

 contabulatis, ultimo carinato, subtus tumidiusculo ; sutura vix mar- 

 ginata ; apertura subquadrato-lunata, valde obliqua, intus albida, 



