428 FERUSSACID^. 



llah. India: Ciittack, prov. Orissa, and upper valley of the 

 Nerbiidda {Tluohald). 



Allied to G. gemma, but more cylindrical, with a convex spire. 

 A specimen in tlie Theobald collection, from the Nerbudda 

 Valley, with six whorls, measures o-5x2-7")mm. Another shell 

 from Malabar, having 6| whorls, has tbe fono\> ing dimensions i 

 length 7 mm., diameter 3 mm. 



4 1 7. Glessula gemma, Eeeve. 



AcJiati7ia gemma (BeDsnn\ Reeve, Conch. Icon, v, 1850, Achafmn,. 



pi. 22, ti^. 123; Pfeiffer, Men. Helic. Viv. iii, 1853, p. 496; 



ibid., Conch. -Cab., Bidimiis, 1860, p. 314, pi. 25, tigs. 24, 25; 



Benson, A. M. N. H. ser. 3, v, 1860, p. 404 (large var.j. 

 Oleacina (^I^lectra) gemma^ Adams, Gen. Rec. Moll, ii, 1855, 



p. 105. 

 Achatina {Elcctra) gemma, Pfeift'er, Mnlak. BUitt. ii, 185G, p. 168; 



Hanley & Theobald, Conch. Ind. 1870, pi. 3(5, tig. 7. 

 Cionella (Glessula) qevima, von Martens, Die Ileliceen, ed. 2, 1860^ 



p. 254. 

 Stenoggra (Glessula) gemma, Nevill, Hand List, i, 1878, p. 170. 

 Glessula e/emma, Pfeiffer & Clessin, Nomencl. Helic. Viv. 1881, 



p. 331 ;' Kobelt, Illustr. Conchyl. Buch, ii, 1878, p. 276, pi. 85,, 



tig. 7; Beddome, Proc. Malac. Soc. London, vii, 1906, p. 169; 



Pilsbry, Man, Conch, ser. 2, x.^, 1909, p. 97, pi. 13, ligs. 1, 3. 



Original description: — "Shell oblong-conical, I'atber solid, 

 whorls six in number, rounded, smooth, columella arched^ 

 abbreviated, aperture nearly round ; purple-black, shining." 

 (Beeve.) 



" Of a much darker purple-black colour than any other of the 

 Indian species, and of shorter growth, with a sinning, polished 

 surface." {lieeve.) 



Hah. India : Barrackpore (Benson) ; Chandpore {Bacon) ; 

 Jessore District, Chandbally, and Moisraka (Nevill); Rajmahal 

 (Rahan) \ Cliaiidernagore (Mainwaring) ; Garo Hills (Godivin- 

 Ansten) ; Malabar plains and Beypur (Beddome). Burma : 

 Cbittagoiig (Rahan) ; Arakan (Kurz). 



Tlie following measurements are supplied by PfeiiJer from 

 specimens in his own collection (Mon. Helic. Viv. iii, p. 496): — 

 "Long. 8|, diani. 4 mill., ap. 3 mill, longa, 2 lata," while Benson 

 (A. M. X. H. ser. 3, v, p. 404) indicates a large variety,. 

 8 X 3| mm. 



It is allied to G. scrutillus, but that species is more cylindrical 

 with a convex spire. A specimen in the BritisJi Museum of 5| 

 whorls measures 6 mm. in length. 



