ZIZYPHINUS. 



Plate IV. 



Species 33. (Fig. a, b, Mus. Cuming.) 



ZlZYFHiNUS CONULUS. ZizypJi. testd conicd, ad basin tu- 

 midiuscultt, anfractibus convexo-decUvibus, lavigatis, 

 niten/.ibiis, adapicem interdiim gramdatis, ad margiiiem 

 basalemfiiiiiculatis; aiireo-Jlacescente ant violaced, nifo 

 et alho iiebulatd et articulatd. 



The little-cone Zizyphinus. Shell conical, rather tu- 

 mid at the base, whorls convexly sloping, smooth, 

 shining, sometimes granulated at the apex, cortled at 

 the basal margin,; golden-yellow or violet, clouded 

 and articulated with red and white. 



Troclms conulus, Linnjeus, Syst. Nat. p. 1330. 

 Zizyphinus conulus, Adams. 

 Trochus violaceiis, Risso. 

 Trochus Lanrj'ieri, Payraudeau. 



Uab. British and Mediterranean Seas. 



The specimen given at Fig. 33 a is Eisso's Trochus 

 violaceus. 



Species 33. (Mus. Cuming.) 



ZlZYPHlNUS GEMMOsus. Zizijpli. lestd subtumido-conicd, 

 solidd, anfractibus declivi-cotivexis, dense valide grana- 

 tis, hie illic lineari-incisis, Uneis oblique minute cre- 

 nulatis, margine basali obtuse rotundato ; aureo-slra- 

 mined, Uneis incisis chocolato-purpureis. 



The gemmed Zizyphinus. Shell rather tumidly conical, 

 solid, whorls slopingly convex, densely strongly 

 grained, here and there linearly engi'aved, lines ob- 

 liquely minutely crenulated, basal margin obtusely 

 rounded; golden straw-colour, engraved lines cho- 

 colate-pui-ple. 



Trochus gemmosus. Reeve, Pro. Zool. Soc. 1843, p. 184. 

 Conch. Syst. vol. ii. p. 165. pi. 318. f. 9. 



Hab. Puerto Galero, island of Mindanao, Philippines (in 

 sandy mud, at a depth of about six fathoms) ; Cuming. 



Strongly grained upon a liright golden straw-colour, 

 enlaced with engraved lines of a deep chocolate-purple. 



Species 34. (Mus. Cuming.) 



Zizyphinus luridus. Zizyph. testd conicd, anfractibus 

 plano-declivibus, ad basin tumidiusculis, lavigaiis vel 

 malleatis, interdum spiraliter lineari-incisis ; ustulato- 

 fuscd, obscurissime lurido-Jlammatd. 



The lukid Zizyphinus. Shell conical, whorls flatly 

 sloping, rather tumid at the base, smooth or mal- 

 leated, sometimes spirally linearly engraved ; burnt- 

 brown, very obscurely luridly flamed. 



NuTTALL, MS. in Mus. Cuming. 



Hab. CaUfomia. 



A smooth shell, spirally engraved towards the apex, of 

 a peculiar bumt-brown colour, faintly obliquely flamed. 



Species 35. (Fig. a, b, Mus. Cuming.) 



Zizyphinus eximius. Zizyph. testd subdepresso-conicd, 

 solidd, anfractibus superne concavo-declivibus, deinde 

 obtuse tnmidis, spiraliter liratd, liris lavihus, ad mar- 

 ginein basalem angulari-prominentibus ; albidd, pur- 

 pureo vel caruleo nebulatd et articulatd. 



The peetty Zizyphinus. Shell somewhat depressly 

 conical, solid, whorls concavely sloping round the 

 upper part, then obtusely swollen, spirally ridged, 

 ridges smooth, angularly prominent at the basal mar- 

 gin ; whitish, clouded and articulated with purple or 

 blue. 



Trochus eximius. Reeve, Pro. Zool. Soc. 1843, p. 185. 

 Conch. Syst. vol. ii. p. 165. pi. 318. f. 13. 



Hab. Panama (in sandy mud at ten fathoms) ; Cuming. 



The painting of this species is mostly disposed in dots 

 and articulated fiUets. 



Species 36. (Fig. a, b, Mus. Cuming.) 



Zizyphinus chloeostoma. Zizyph. testd subpyramidali- 

 conicd, anfractibus concavo-declivibus, subtilissime 

 liratis, iuterstitiis minute oblique reticulatis, an- 

 fractuum margine basali compresse angulato-productis ; 

 purpurea aut virente, saturate nebulatd et albo-tnacu- 

 latd, apice sanguineo. 



The geeen-mouth Zizyphinus. Shell somewhat pyra- 

 midally conical, whorls concavely sloping, very finely 

 ridged, interstices minutely obliquely reticidated, 

 basal margin of the whorls compressly angularly pro- 

 duced ; purple or green, darkly clouded and white- 

 spotted, apex blood-red. 



Trochus chlorostoma, Menke, Moll. Nov. Holland, p. 17. 

 Zizyphinus chlorostoma , Adams. 



January, 1863. 



