14 CYPR«A. 



et ad latera fulva, grisescenti, obscure roseo quadrifasciata, 

 maculis rotundis albis inasqualibus instructa, ; extremitatibus 

 obtusis, subincrassatis, callo basali ad latera ; dorso expanse-, 

 transverse striate-, arenaceo ; basi subrotunda, striata, are- 

 nacea ; apertura angusta, antice rectiuscula ; dentibus utrin- 

 que 28 circa, sulco columellari antice excavato postice le- 

 viter dentato, plica terminali tortua, termino oblique trun- 

 cato. 



38. njvosa, Brod., (f. 89, 90). — C. testa, quam C. vitellus 

 magis cylindrica, callo basali baud ad latera expanso, ainbula- 

 cro dorsali lato conspicuo, irregulariter marginato ; maculis 

 albis, irregularibus, inaequalibus ; columellas plica terminali 

 quadratim truncata; labii extremitate brevi, rotunda, labio 

 antice excavato. 



39. Broderipii, Gray, (f. 87, 88). — C. testa quam C. nivosa 

 magis ovata, colore dorsali roseo laterali fulvo-rubescenti, 

 intervallo macularum castaneo ; maculis majoribus irregula- 

 ribus ; interstitiis fere linearibus ; apertura latiori ; dentibus 

 magis elongatis, interstitiis profundioribus ; labio ad termi- 

 num anticum breviusculo, truncato, ad terminuru posticum 

 alterum superante. 



Note. — Vitellus, nivosa, Broderipii. The first is oval, ob- 

 tuse, shows no dorsal ambulacrum, and has the cirrated 

 enamel of the base spread over the sides, leaving a rather 

 narrow space for the true dorsal area. The two others have 

 a broad dorsal ambulacrum, and the basal callus is con- 

 fined to the under side, except at the extremities. Bro- 

 deripii is by far the lighter and broader shell, with the most 

 delicate colouring, the spots more numerous and varied in 

 form, the mouth wider, and teeth longer. 



40. princeps, Brod., (f. 1, 2). — C. testa ovato-subpyri- 

 formi, inflata, tenuiuscula, ad lineam dorsalem utrinque cas- 

 taneo nebulata, strigis arcuatis quasi-hieroglyphicis notata, 

 lateribus fulva maculis rotundis picta; terminis productis, 

 lineis castaneis plurimis sinuatis ornatis; dorso elevato, su- 

 pra medium gibboso ; basi rotunda ; extremitatibus acumi- 

 natis, approximatis ; apertura angusta, subsinuata; labio an- 

 tice arcuato, subexcavato; dentibus parvis, columellas 39 

 circa, labii 41, interstitiis profundis, sulco columellari an- 

 gusto ; plica, terminali producta, arcuata,. 



Note. — In form approaching C. tigris, but much more in- 

 flated. In its dorsal markings it reminds one slightly of 



