SUCCIXEID.'E. 445 



Stenof/1/ra (Spi'ra.vis (Etfsjnraxis)) cingalcnsis, Pfeiffer >t Cles*iii 



Nomencl. llelic. Yiv. 1881, p. 323. 

 Digoniaxis ciiiffalem^is, Jousseaume, M^m. Soc. Zool. France, vii. 



1894, p. 29i ; Pilsbry, JMau. Coucli. ser. '2, xviii, 190G, pi. 4' 



fig. 18; xix, 1908, p. 289. 



Oricjinal description: — " S. testa subrimatti, subuhito-turrita, 

 gracili, solida, polita, striatula striis minutis cont'ertissiniis uiiclii- 

 latis spiralibus decussata ; spira elongata, superne sensim attenuata, 



apice ?; sutura vix impressa, irregulari ; aufractibus siiper- 



stitibus 11 (apicalibus deficieiitibus), planulatis, ultimo ad basiu 

 rotuiidato; apertura siibobliqua, emargiuato-elliptica ; peristoinate 

 recto, intus ad anguluni superiorem calloso ; margine dextro 

 superne arcuato, basali incrassato, coluinellari calloso, expau- 

 siusculo, subreflexo, superne plica obliqua spirali solida luuuito. 



"Long. 14, diani. J^ mill., ap. long. 3, diam, 1.;^ mill." (Benson.) 



Hah. Ceylon : Weelgamoowe, Matelle {Layard). 



" A Siirnola-\\ke shell, differing from Torta.vis by the spiral 

 plait on tlie upper part of the columella. Its solidify causes me to 

 place it in Dujoniaxis with some doubt, especially since it belongs 

 to a different fauna." {Pilshry.) 



Family SUCCINEID^. 



Genus SUCCINEA, Draiximaud. 



ASwecm^/, Draparnaud, Tabl. Moll. Terr. Huv. France, 1801, p. 55; 

 C, Pfeiffer, 8yst. Anordn. Beschr. Land- imd Wassersehu. 1821, 

 p. 66; Gray in Turton, Manual, 1840, p. 177; Pfeiffer, Mon. 

 Helic. Viv. i, 1848, p. xiv ; Adams, Gen. Rec. Moll, ii, 1855, p. 128 ; 

 Lehmanu. Leb. Schn. Mnsch. Umo;. Stettins, 1873, p. 49 (anatomy); 

 Ihering, Jahrb. Dents. Malali. Ges. iv, 1877, p. 138 (anatomy) ; 

 Fischer, Man. Conchyl. 1883, p. 490, fig. 261 (radula). 



Type: (first species) Ileli.v jmtris, Linue ( = Si(Ccinea ohloir/a, 

 Draparnaud). 



Mange. All parts of the globe. 



Shell imperforate, oval, thin, horny, more or less translucent ; 

 spire conical, short, whorls rapidly enlarging, the aperture large, 

 oblong, columella simple, peristome simple, acute. 



Animal with a large foot; tentacles short, the upper pair 

 conoid, swollen at the base, the lower pair scarcely visible, some- 

 times absent. 



"The hermaphrodite gland, both as regards structure and 

 position, does not exhibit any special features ; the same applies 

 to the thick, sausage-shaped hermaphrodite duct which is very 

 prominent on account of its dark coloration, derived from the 

 superimposed pigmented cells of the connective tissue. Both 

 before and after pairing time I found it crowded with sperma- 

 tozoa. The epithelium is not vibratory. Wiiere it approaches 



