TORTULOSA. 183 



264. Tortulosa margiiiata, Pfeiffer. 



Catuulus inurginatiis, Pfeiffer, Proc. Zool. Soc. 1853, p. 52 ; id., 

 Mahik. Bl. 1, 1854, p. 90 ; id., Mon. Poeum. Supj)!. 1, 1858, p. 90 ; 

 Sowerby, Tlies. Conch, iii, 1864, pi. 264, figs. 4, 5 ; 11. Nevill, 

 Knuni. Helic. Pueuni. Ceylon, 1871, p. 5; Hanley & Theobald, 

 Conch. Ind. 1870, pi. 145, tip'. 6 ;' Reeve, Conch, Icon, xx, 

 Pupinidfe, 1876, pi. 7, tig. 58 ; Theobald, Cat. Shells Brit. India, 

 ls76, p. 41; Nevill, Hand l>ist. i, 1878, p. 298 ; Jons-^eaume, 

 Mem. Soc. Zool. France, vii, 1894, p. 310 ; Kobelt & MoUendoi-ff, 

 Nachr. Dents. Malak. Ces. xxix. 1897, p. 14.'> : Sykes, Proc. Malac. 

 Soc. iii, 1898, p. 68; Kobelt & .Milllendorff^ Cat. Pneiim. 1899, 

 p. 39; Sykes, Journ. Malac. xii, 1905, p. 55. 



Tortulosa maryinatu, Adams, Gen. llec. Moll, ii, 1856, p. 285. 



Tortulosa {Eucatauliis) viarginata, Kobelt, Uas Tierreicli, Lief. 16, 

 1902, p. 286. 



Original description : — " T. vix perforata, subt'usiformi-turrita, 

 solida, subarcuatim costulato-striata, opaca, fusco-lilacea, strigis 

 angulo.sis albidis marniorata; spira subciirvilinearis, turrita, apice 

 obtusa ; siitura Jevis, filomargiiiata ; aiifr. 8 phiniusculi, ultimas vix 

 attenuatus ; carina basalisalba, conipressa, antrorsum stibdilatata; 

 apertura verticalis, subovalis ; perist. album, duplex: internum 

 basi profuude incisuin, externum patens, ad canalem mediocrem 

 retract uni. 



"Long. 16, diam. "> ', mill. Ap. iiitus 4 mill, longa, '3it lata.'' 

 (Pfeiffer:) 



Bab. Ceylon: Xewera Ellia {JS^eviU). 



Var. crenulata, Fultoa. 



C'ataulus marginatus, var. crenulata, Fulton, A. M. N. H. ser. 7, 

 xiii, 1904, p. 4.53; Sykes, .lourn. Malac. xii, 1905, p. .55. 



" Slightly broader than typical mari/incitus, less strongly 

 malleated, and lacking the distinctly margined suture of that 

 species; of a light reddish colour, and crenulated at and below 

 the suture of the middle whorls, the antepenultimate showing it 

 more distinctly. 



"Maj. diam. (!, alt. L") unn." (Fulton.) 



llab. Ceylou. 



Var. notata, Sykes. 



Cataulus marginatus, var. notata, Sykes, Journ. Malac. xii, 11^05, 

 p. 57, text-tig. .']. 



•'Sliell larger than t\w typical form; shape more pyramidal; 

 whorls more flattened ; longitudinal striation almost absent ; the 

 malleation in the variety is much stronger, especially on the last 

 half of the last whorl, where a second carina, above the normal 

 one, is often present, leaving a smooth area between them: mouth 

 duplex, pale flesh -colour. 



'' Alt. 17, diam. max. (hisi whorl) 'y'> niilliiu."' (Sijkea.) 



Hah, Ceylon. 



