12 Mr. W. H. Benson on neiv Land-Shells 



peristomatis marginibus callo albido junctis, dextro rotundato, 

 superne antice arcuatim prominente, tenuiter marginato, columel- 

 lari brevi reflexiusculo, basali longe oblique descendente, intus 

 incrassato, albido. 



Diain. major. 48, minor 38, axis 21 mill. 



Habitat in montibus prope Cottyam in regione Travancorica. 



I am indebted for this and the following shell to Mr. F. Day, 

 Assistant-Surgeon Madras Medical Service. The form is pecu- 

 liar, and unlike that of any known Indian species. 



2. Helix Anax, B., n. sp. 



H. testa late umbilicata, subovato-discoidea, utrinque concava, soli- 

 dula, superne oblique costulato-striata, subtus striata, nilidiuscula, 

 fusco-castanea, subtus lsetiore ; spira immersa, apice elevatiusculo, 

 sutura subprofunda ; anfractibus 5, primis convexiusculis, ultimo 

 convexo, antice descendente, dilatato, deflexo, ad diametrum mi- 

 norem angustiore ; apertura perobliqua, rotundato-oblonga, lamellis 

 2, parietalibus, albis, superiore longe intrante, sinuata, inferiore 

 obliqua sinuata, breviore, ab apertura remotiuscula, palatalibus 3 

 longiusculis subprofundis obliquis parallelis ab apertura conspi- 

 cuis extus perlucentibus coarctata ; peristomate caeruleo-albido, 

 subcalloso, breviter reflexiusculo, marginibus callo albido junctis, 

 inferiore subdentato-incrassato. 

 Diam. major 23, minor 17|, axis 8 mill. Apert. lata vix 10, longa 



9 mill. 

 Habitat cum specie prsecedente in montibus Travancoricis Mavilli- 

 curray dictis. 



Four oblique parallel palatal lamellse, similar to the three within 

 the aperture, are visible through the shell at the commencement 

 of the last whorl near the left lip of the peristome*. 



A species belonging to the restricted form of Gorilla, Adams, 

 consisting of the Ceylon shells, C.erronea, Albers, C.Rivolii,Desh., 

 C. Chaiyentieriy Pfr., and C. Humberti, Brot. It comes nearest 

 to C. erronea, but differs in the more rounded aperture, the dark 

 chestnut colour, the palatal and parietal lamellae, and other 

 characters. It is an interesting Southern Indian approach to 

 Ceylon forms, observable also in Cataulus recurvatus, Pfr., and 

 other Travancore shells. When we consider the small tracts 



* In one of my Ceylon specimens of H. Rivolii, found in a different 

 quarter from the rest, there are four oblique parallel lamellae in the same 

 position as the four remote ones near the parietal lip in H. Anax, and 

 visible also from the exterior, the upper one heing less plainly seen through 

 the strong sculpture. In others they are deficient, even when sought for 

 by cutting into the shell. In page 22 of the 'Journal ile Conchyliologie ' 

 for 1864, Brot correctly states that there are four palatal lamellae in H. 

 erronea and H. Rivolii, instead of three as recorded by Pfeiffer. In those 

 species their irregular relative position is very different from that which is 

 observable in H. Anax. 



