AULOl'OMA. 95 



Ges. xxix, 1897, p. 113; id., Cat. Pneura. 1809, p. 25 ; Kobelt, 

 Das Tierreich, Lief. 1(5, 1902, p. L57. 



Type, Aulopoma liofmeisteri, Troschel. 



Range. Cejlon. 



Shell widely umbilicated, depressed turbinate or discoid, last 

 whorl solute; peristome continuous, free, fitting into a circular 

 groove on the inner side of the operculum, which is slightly larger 

 than the aperture, planorbis-shaped, multispiral, composed of two 

 laiiiiuas with a spiral cavity between. 



133. Aulopoma graiide, Pfeiffer. 



Ci/c/osfoiiia {Aulopoma) qrande, Pfeiflev, Proc. Zool. Soc. 1855, 

 p. ]()4 ; id. Novit. Concii. ser. 1, i, 1856, p. ()9, pi. 19, fi^s. 11-13. 



Aulopoma (jrancle, PfeifFer, Mon. Pneuni. Suppl. 1, 1858, p. 39 ; 

 Hanley & Theobald, Conch. Ind. 1870, pi. 47, figs. 1, 2; 

 H. NeVill, Enum. Helic. Pneinii. Cevlon. 1871, p. 5 ; Theobald, 

 Cat. Shells Brit. India, 1876, p. 37; Nevill, Hand List, i, 1878, 

 p. 279; Kobelt & Miillendorff, Nachr. Dents. Malak. Ges. xxix, 

 1897, p. 113; id.. Cat. Pneum. 1899, p. 25; Kobelt, Das 

 Tierreich, Lief. 16, 1902, p. 158. 



Original description : — " C. teste umbilicata, depressa, solida, 

 coufertim distincte striata, sulcis spiralibus nonnullis remotis 

 sculpta, sub epidermide nigro-fusca, saepe fasciatim detrita, obsolete 

 marmorata ; spira brevissima conoidea, vertice subtili, acuminato, 

 nigricante; anfr. 5 convexis, ultimo terete, basi Ia?viore, antice 

 breviter soluto, vix descendente ; apertura obliqua, subcirculari ; 

 perist. siinplice, recto. — Operc. subsexspirafo, anfractibus oblique 

 valide plicatis. 



"Diam. maj. 25, min. '2lk, alt. 13 mm." {Pfciffer.) 



Hab. Ceylon [Thiuaites). 



134. Aulopoma helicinum, Chemnitz. 



TwboJielianus, Chemnitz, Concli.-Cab. ix, part 2, 1786, p. o9,pl. 123, 

 fi<rs. 1067,1068. 



Cyclostoma helicinum, Pfeiffer, Conch. -Cnb., Cyclostomaceen, 1849, 

 p. 160, pi. 22, figs. 4, 5. 



Aulopoma helicinum, PfeifTer, Zeits. IMalak. iv, 1847, p. Ill ; Gray, 

 Nomencl. Moll. Brit. Mns. 1850, p. 14 ; Pfeiflfer, op. cit. viii, 1851, 

 p. 138; id., Mon. Pneura. '.882, p. 53; id., Cat. Phaneropn. Brit. 

 Mus. 1852, p. 35; Adams, Gen. Rec. Moll.ii, 1855, p. 283; Ilanley 

 & Tlieobald, Conch. Ind. 1870, pi. 4, fig. 8 ; H. Nevill, Lnuni. 

 llelic. l*neunr. Cevlon, 1871, p. 5; Theobald, Cat. Shells Urit. 

 India, 1876, p. 37; Nevill, Hand Li.st, i, 1878, p 279; 

 .lonsseamne, Mem. Soc. Zool. France, vii, 1894, p. 302; Kobelt 

 & Mollendorff, Nachr. Dents. Malak. Ges. xxix, 1897, p. 113 : 

 id.. Cat. Pneuuj. 1899, p. 25; Kobelt, Das Tierreich, Lief. 16, 

 1902, p. 158. 



" C. testa late umbilicata, subdiscoidea, tenuiuscula, striata, 

 pallide cornea, rufo-marmorata et unifasciata; spira mucronate, 



