C H I L I N A. 



Genus CHILIXA, Gray. 



Testa fluviatilis, tenuis, ovata, ventricosa, epidermide 

 olivaceo induta, ■plerumque fasciis maculisque picta ; 

 aperiura oblonga; columella incrassata, plusminusve 

 plicata; lahio externa acuta. 



Shell fluviatilo, thin, ovate, ventricose, covered with an 

 olive epidermis, generally painted with bands and 

 spots; aperture oblong; columella tliickeiied, 

 more or less plicated ; outer lip sharp. 



Sy„. D(.mhei/u, Orbigny. Mi, Lea. FotamophUa, 

 Swainson. 



Although some species of Limnixa approach the 

 ChiUnce in form and habit, and are also freshwater 

 molluscs, there is no difficulty in distinguishing sheila 

 of the two genera. The shells of the Cl'ilince are 

 always striped or spotted under the epidermis, and the 

 columella is thickened, more or less plaited. All the 

 species inhabit the warm regions of South America. 



Species 1. (Fig. a, b, Mus. Brit.) 



CniLiXA KLUViATiLis. Chi. tcstd parvo., ovaU'i, mnndis 

 fluctuosis JUsdatim pictd, intits rosed ; spird hreri, 

 conicd, columella antice recta, medio uniplicatd. 



The FLUViATiLE Chilina. Shell small, ovate, painted 

 with fluctuating spots in bands, pink within ; 

 sf>ire short, conical, columella straight anteriorly, 

 with one plait in the middle. 



Grav, in Brit. Mus. Sowerby's Conchological Illustra- 

 tions, fig. 5. 



Hah. Chili. 



Species 2. (Fig. a, h (and PI. III.), fig. c, Mus. Brit.) 



,INA FLUl 



purpurei 



Chilina fluminka. Chi. testa ovatd,temii, pai 

 siihquadratis in scriehas qi 



maculis 

 uir dis- 



tinctis notatd; t^pird siibproductd, anfractibus parvis, 

 comwiiusculis ; cahimclld crassd, pilanatd, plicis 

 duabus, und ad, nudinm, altera siiprd medium 

 armatd. 



The streamlet Chilina. Shell ovate, thin, small, 

 marked witli four rows of purple, rather square 

 distinct spots ; spire rather produced, whorls few, 

 rather convex ; columella thick, flattened, armed 

 with two plaits, one at the middle and one above. 



Gi:av. Spicilegia Zoologica, p. 5; Conch. 111. fig. 7. 



Hab. S. America. 



species 



(Fig. a, b, Mus. Brit.) 



CaiLiNA MA.ioR. Chi. testa ovato-ven.rli'.osd, interniptum 

 quadri/asdatd, intus fused ; spird breviHsculd, 

 anfractibus ohliise anijulatis, ultimo luaximo, ventri- 

 cosa ; columella oblique biplicatd. 



The large Cuilina. Shell oval, ventricose, inter- 

 ruptedly four-banded, brown within ; spire rather 

 short, whorls obtusely angular, the last very large, 

 ventricose ; columella obliquely two-plaited. 



SowERBT. Malacological Magazine, part 2 ; Conch. 111. 

 fig. 7. 



Bab. S. America. 



This Very large species is very characteristic of the 

 genus to which it belongs. 



Species -1. (Fig. a, 6, Mus. Brit.) 



Chilina Dombeyana. Chi. testd ohlongd, ovatd, intus 

 fused; st7-igis fe.xuosis in seriebus tribus pictd; 

 spird productd ; anfractibus obtuse angulatis ; aper- 

 turd oblongd, labia externa svprd medium sinuatim 

 produclo ; columella crassd, latd, medio, plica crassd 

 munitd. 



Domuey's Chilina. Shell oblong, ovate, brown within ; 



August, 187 I 



