MOLLUSCA OF IXDIA. 



151 



Genus Macrochlamys. 

 {Continued from Vol. II. p. 90.) 



Macrochlamys iugubium, Benson. (Plate CIV. figs. 1-7.) 



Helix tugurium, Benson, A, M. N. H, ser. 2, 1852, vol. x. p. 348 ; 

 Pfr. Mon. Hel. vol. iv. p. 124 ; Eeeve, Conch. Icon. 1. 171. fig. 1151 • 

 ilanley, Conch. Ind. p. 14, pi. sxix. fig. 10. 



Rotula (sec. A) tugurium, Theob. Suppl. Cat. p. 21. 

 _ Nanina tugurium, Nevill, Hand-list, p. 30. (Stoliczka's descrip- 

 tion of the animal quoted by G. Nevill is very accurate as regards 

 the form of the extremity of the foot.) 



Bensonia tugurium, Clessin, Nomen. Helic. p. 42. 



Original description :— " Testa perforata, depressa, tenui, supra 

 exilissime radiatini costidato-striata, striis spiralibus decussatis, subtus 

 Icfvigata, luteo-cornea ; spira depresso-conoidea, apice acutiusculo. 

 Anfractihus 6, planiuscidis, ultimo ad periphoiriam subcarinato, 

 subtus convewiusculo ; apertura obliqua, late lunari, intus rernote 

 albido-sublabiata, peristomate simplici, acuto, margine columellari 

 breviter subrejiexo. 



" Diam. major 19, minor 16, axis 10 mill. 



" Hab. ad Darjiling. Teste R. Trotter. 



" The sculpture of this species is peculiarly delicate and beautiful. 

 The labiation near the aperture forms exteriorly a yellow band 

 similar to those observable in several other Himalayan Helices, and 

 in the species H. verticillus and smijrnensis of Southern Europe and 

 Asia Minor." 



Macrochlamys tugurium. of Benson is one of the largest land-shells 

 in the valley of the Teesta and its tributaries. It is a variable shell, 

 for I have examples with a pale ochre band behind the aperture, a 

 moderately high spire, and of a general greenish-grey tint ; one very 

 close-wound shell with a high spire from 8tohczka, one of a fine 

 burnt-sienna and same coloured band from Nevill (?), four with pale 

 ochre band and of a greenish-brown tint throughout; from theRichila 

 Pass, Hikkim, I have a fine series depressed in form, the band at 

 the peristome not so yellow in tint, more distinctly rosy brown. 

 Specimens examined are as follows : — 



tngurium : type described by Benson 



Decussate. do. from Eissom Peak 



Do. do. from Rirhila Peak 



Finely decussate. do. from Stoliczka 



Decussate. do. from Blanford 



do. from Nerill 



dalingensis, G.-A. (type) .. 



rnainwarwgi (type) 



Band near 

 aperture. 



Ruddy brown. 

 Ochre. 

 Brown. 



Maj. diam. 

 mm. 



190 



18-75 



16 50 



21-75 



190 



200 



240 



27-0 



The figure in the ' Conchologia Indica,' pi. xxix. fig, 10 (Reeve, 



