312 CLAUSILIID./E. 



Clausilia monticola, Hanley & Theobald, Conch. Ind. 1875, pi. 118, 

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



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

 Offenbacher Ver. Naturw. 1878, Mitt. p. 57 ; Pfeiffer & Olessin, 

 Nomencl. Helic. Viv. 1881, p. 392. 



Original description : " Testa rimata, exilis, elongata, f usiformi- 

 subulata, solidula, brunnea vel brunnescente-grisea, parum nitida ; 

 superficie saepe erosa ; spiraB lateribus antice rectis, apicem 

 papillarem versus concaviusculis ; sutura simplice, impressa. 

 Anfr. 13 convex!, primi 4 fere cylindrici, antepenuitimus vix quam 

 penultiraus major, ultimus ad basin rotundatus, hand compressus. 

 Apertura piriformis, fere verticalis, lamella palatali sinisfcrorsim 

 deflexa, acuta ; colurnellari subprofunda ; lunella nulla, plicis 

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

 continuum, vix solutum, leviter sinuatum, superne repandum, 

 expansiusculum, mediocriter incrassatum, album, margine parietal! 

 leviter sinuato. 



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

 3-66 longa, 2-66 lata." (Blanford.) 



Hob. India : Burrail Hills, Assam ; Nortb Cachar, alt. 6500 ft. 

 ( Godwin- 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. waageni but the upper portion 

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

 the Hanley 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 1869 by Dr. Horsfield, and 

 labelled C. cylindrica, is perhaps a small form of G. monticola. It 

 has 12 whorls and measures 16x3 mm. Two specimens from 

 North Cachar in the Beddome collection are both composed of 1 2 

 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, Stoliczka. 



Clausilia arakana (Theobald), Stoliczka, J. A. S. B. xli, 1872, 

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

 pi. 118, tigs. 8, 9 ; Sowerby, Conch. Icon, xx, 1875, Clausilia, 

 pi. 9, tig. 78 ; Pfeiffer, Mon. Helic. Viv. viii, 1877, p, 467. 



Clausilia (Phaedusa) arakana, Nevill, Hand List, i, 1878, p. 183. 



Clausilia (Phaedusa (Acrophaedusa)) arakana, Boettger, Ber. 

 Offenbacher Ver. Naturw. 1878, Mitt. p. 57 ; Pfeiffer & Clessin, 

 Nomencl. Helic. Viv. 1881, p. 392. 



