

32 CYPR-EA. 



apertura lata ; columella postice brevissima,, dentibus minii- 

 tissimis ; labio angusto, j>ostice elevatirn producto, dentibus 

 18 tenuibus elongatis subdistantibus. 



107. edentula, Sowb., (f. 313, 314). — C. testa, Algoensi 

 affini, terminis magis productis, postice concavo-depressa, ; 

 columella edentula, labio obsoletissime dentato ; dorso sub- 

 cinereo, maculis castaneis magnis picto. 



Note. — Algoensis and edentula. The latter, besides being 

 nearly or wholly toothless, has a shorter body, and more 

 produced and depressed ends and margins than the former. 

 Its colouring is also more bold, the back being marked by 

 large, distinct blotches. 



108. similis, Gray, (f. 300, 301). — C. testa ovato-subpy- 

 riformi, ventricosa, pallida, crassiuscula, latere dextro ter- 

 minisque marginatis ; marginibus incrassatis, angustis ; 

 dorso postice depresso, vix umbilicato, antice callo rotun- 

 dato marginato; basi subconvexa; columella postice brevi, 

 antice contracts, dentibus depressis brevibus supra medium 

 super basim interdum extensis, ad terminum anticum irre- 

 gulariter elongatis ; apertura lata, ; labio angusto, postice 

 elevato, antice infra medium incurvo, dentibus 21 elonga- 

 tis tenuibus depressis distantibus. 



109. castanea, Higgins, (f. 302, 303). — C. testa G. simili 

 affini, sed pyriformi, postice umbilicata ; terminis magis 

 productis ; columellas dentibus irregulariter alternatis ; labii 

 dentibus magis numerosis (26 circa), elongatis, castaneis, 

 nonnunquam intermediis ; dorso castaneo interruptim picto. 



Note. — Similis and castanea. The new shell described by 

 Mr. Higgins has a curiously-interrupted painting of chest- 

 nut, which similis may also have possessed, and the teeth of 

 the outer lip are coloured, as those of similis may also have 

 been, no specimens of the latter having been obtained in a 

 living state. But the pearl-like shape, the umbilical depres- 

 sion, the greater number of labial teeth, and possibly the 

 alternating disposition of the columellar teeth seem to indi- 

 cate something more like specific distinctness of character 

 in castanea, and are consistent in all the specimens we have 

 seen. 



110. fusco-dentata, Gray, (f. 298, 299). — C. testa oblongo- 

 subpyriformi, subcinereo-fulva, latere dextro anguste margi- 

 nato ; extremitatibus productis, incrassatis, postica profunde 



