CYPR.EA. 49 



174. Californica, Gray, (f. 425, 426).— C. testa C. san- 

 guineus affini ; costellis crassis, perpaucis, ad sulcum subtu- 

 berculatis, nonnullis intcrruptis. 



175. proddcta, Gash., (f. 495, 496). — C. testa, albida, ovato- 

 subglobosa, liuea mediana, subdepressa ; dorso elevato ; late- 

 ribus subdilatatis ; extremitatibus ereuulatis, productis ; basi 

 planulata ; apertura angustata, utrinque acutidentata ; cos- 

 tellis dorsalibus acutis, elevatis, conspicue versus medium 

 convergentibus, plerumque per lineam dorsalem continuis ; 

 interstitiis crenulatis. 



175*. paucilirata, Sowb., (f. 502, 526). See page 53. 

 Note. — Sanguinea, fusca, rubinicolor, Californica, prod/ucta, 



paucilirata. Fig. 486 is a shell from California, only differing 

 slightly in colour from the type of sanguined. It is difficult 

 to state characters distinguishing fusea from sanguinea that 

 are positive, although compared with the normal form of the 

 latter, the former appears very different. It is smaller, nar- 

 rower, more produced, more finely ribbed, more distinctly 

 bordered, and emarginated at the ends, and the ribs are of the 

 same colour as the rest of the shell. Notwithstanding 1 some 

 puzzling apparent intermediate varieties of the larger shell, 

 I think on the whole that fusca may be regarded as distinct. 

 Rubinicolor has the teeth more numerous and even ; very 

 few of the dorsal ribs terminate either at the sides or at the 

 dorsal line. The shell is also smaller and shorter, with the 

 upper border more dilated. Californica is more nearly allied 

 to sangidnea, having the same converging character of ribs ; 

 but the ribs are much fewer and thicker ; some of them 

 swelled or tuberculated at the dorsal line, which is slightly 

 depressed. Producta, although a white shell, has much more 

 affinity with sanguinea than with scabriuscula, by reason of 

 the converging character of the dorsal ribs and the slight- 

 ncss of the dorsal depression. Taudlirata is small, with 

 fewer ribs and more distinct sulcus than producta. 



176. tremeza, Dud., (f. 510, 511). — C. testa, ovato-ros- 

 trata ; pallida rosea, vivide utrinque rubro maculata ; dorso 

 rotundo, brevi ; linea mediana, leviter impressa ; costellis 

 dorsalibus, valde convergentibus, plerumque per lineam dor- 

 salem continuis; paucis mtermediis ; basi convexa,; extre- 

 mitatibus exiguis; apertura angustissima. 



Note. — Tremeza of Duclos is exigva of Gray. It is a most 



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