312 CLAUSILIIl).!;. 



Clttusilia monticola, Ilaiiley & Theobald, Coucli. Ind. 187o, pi. 118, 

 tig. 7 ; rfeiffer, Mon. Helic. Viv. viii, 1877, p. 467. 



Clausilia {Phaedusa (Acrophaedusa)) monticola, Boettger, Ber. 

 Oftenbacher Ver. Naturw. 1878, Mitt. p. 57 ; Pfeift'er & Olessin, 

 Nomeucl. Helic. Yiv. 1881, p. 392. 



Original description : — " Testa rimata, exills, elougata, f usiformi- 

 subulata, soHdula, brunnea vel brunnescente-grisea, parum niticla ; 

 superficie ssepe erosa ; spirse lateribus antice rectis, apicem 

 papillarem versus coneaviusculis ; sutura simpbce, iinpressa. 

 An£r. 13 couvexi, primi 4 fere cylindrici, antepenultimiis vix quam 

 penultiraus major, ultimus ad basin rotundatus, baud compressus. 

 Apertura piriformis, fere verficalis, lanielLa palatali siuistrorsim 

 deflexa, acuta ; columebari subprofunda ; lunella uuUa, pUcis 

 palatalibus fere parallelis 6-7, supera valde elougata. Peristoma 

 continuum, vix solutum, leviter sinuatum, superne repandum, 

 expansiiiscubim, mediocriter incrassatum, album, margine parietali 

 leviter sinuate. 



"Long. 2l, diam. anfr. penult. 4 mm.; apart, cum perist. 

 3-66 longa, 2-66 lata." {Blanfovd.) 



Hah. India : Eurrail Hills, Assam ; Nortb Cachar, alt. 0500 ft. 

 ( Godivin- Austen) . 



" This species is well distinguished from its allies by its slender 

 shape and numerous whorls.*' {Blanford.) 



The relatively long last whorl and the strongly reflexed and 

 expanded right and basal margins of the peristome are also 

 striking features separating it from the other Indian Clausilias. 

 It bears some resemblance to C. ivcuKjeni but the upper portion 

 of the spire is more slender and attenuated. A specimen from 

 the Hauley collection, presented to the British Museum by 

 Mr. Harvey, is presumably the one figured in Conch. Ind., but it 

 has the aperture more pear-shaped than is shown in the figure, 

 the outer margin being more curved. It possesses 14 whorls and 

 measures 22 mm. The figure given by Blanford and Stoliczka in 

 J. A. S. B. is more accurate. A shell with no precise habitat, 

 presented to the British Museum in 1S69 by Dr. Horsfield, and 

 labelled C. crjlindrica, is pei'haps a small form of C. monticola. It 

 has 12 whoi-ls and measures 10x3 mm. Two specimens from 

 North Cachar in the Beddome collection are both composed of 12 

 whorls, and have a diameter of 3-75 mm., but whereas one 

 measures 21 mm. the other only attains a length of 18-5 mm. 



277. Clausilia arakana, Stoliczla. 



Clausilia aralama (Theobald), Stoli'-zka, J. A. S. B. xfi, 1872, 

 p. 210, pi. 9, fig. 20; Ilanley & Theobald, Conch. Ind. 1875, 

 pi. 118, figs. 8, 9; Sowerbv, Conch. Icon, xx, 1875, Clausilia, 

 pi. 9, fig. 78 ; Pfeifier, Mon. Helic. Yiv. viii, 1877, p, 467. 



Clausilia {Fhaedusa) arakana, Nevill, Hand List, i, 1878, p. 183. 



Clausilia {Phaedusa (Acn^jhaedusa)) arakana, Boettger, Ber. 

 Oftenbacher Ver. Xaturw. 1878, Mitt. p. 57 ; Pfeifier & Clessin, 

 Nomencl. Helic. Yiv. 1881, p. 392. 



