ZIZYPHINUS. 



Plate V. 



Species 28. (Mus. Cuming.) 



ZlZYPHlNUS INCERTUS. Zhyph. testd abbreviato-conicd, 

 siuistraU,Jiavescente-albd, anfractibiis declivi-convexis, 

 spiraliter dense Uneari-Uratis, anfraciu ultimo basi 

 obtuse angulalo. 



The doubtful Zizypiiinus. Shell shortly conical, si- 

 nistral, yellowisli white, whorls slopingly convex, 

 spirally closely linearly ridged, last whorl obtusely 

 angled at the base. 



Hab. Tasmania. 



This sinistrally coiled shell appears to me to be distinct 

 from any other described species. Its normal growth is 

 probably dextral. 



Species 29. (Mas. Cuming.) 



ZizYPHiNus scoBiNATUS. Zi:i/ph. testd erecto-conicd, ad 

 basin tumidiusculd.Jlavescente-albd, riifo obscure flam- 

 matd el punctata, anfractibus concavo-declivibus, un- 

 dique dense papillari-granatis, anfractuum maryine 

 in/eriori producto. 



The filed Zizyphinus. Shell erectly conical, rather 

 tumid at the base, yellowish white, obscurely flamed 

 and dotted with red, whorls concavely sloping, densely 

 papillary-grained throughout, lower margin of the 

 whorls bulging. 



Adams, MS. in Mus. Cuming. 



Hab. Bombay. 



The grains in this elegantly-formed shell are closely se- 

 rially developed, and they are so large as to have a papil- 

 lary appearance. 



Species 30. (Mus. Cuming.) 



Zizyphinus millegranus. Zizijpk. testd subacute co- 

 nicd, ad basin tumidiuscvld,flavescente-albd, purpureo- 

 roseo sparsim punctata et articulatd, anfractibus plano- 

 declivibus, iindiqne obliquii reticulatim striaturatis, 

 anfractuum margine inferiori crenato-funiculato. 



The thousand-grained Zizyphinus. Shell rather 

 sharply conical, slightly tumid at the base, yellowish 

 white, sparsely dotted and articulated with purple- 

 rose, whorls flatly sloping, obliquely reticulately 

 fretted throughout, lower margin of the whorls cre- 

 nately corded. 



Trochus millegranus, Philippi, Enura. Moll. Sicil. vol. i. 



p. 183. pi. 10. f. 2.5. 



Trochus Clelandi, Wood. 



Trochus Martini, Smith. 



Trochus miliaris, Scacchi. 

 Hab. European Seas, from Norway to the Mediterranean. 



The granular sculpture is in this species contorted, as it 

 were, by oblique ridges into a netted fretwork. It is 

 usually pale in colour, more or less delicately dotted and 

 articulated with purple-rose. 



Species 31. (Mus. Ciuning.) 



Zizyphinus Antonii. Zizyph. testd sublatl conicd, so- 

 lidd, (irgenteo-albu, atro-purpureo sparsim strigatd et 

 punctata, anfractibus concavo - declivibns, spiraliter 

 Uneari-granatis, graiiorum seriebus alternatini majo- 

 ribus. 



Anton's Zizyphinus. Shell rather broadly conical, solid, 

 silvery white, sparsely streaked and dotted with dark 

 purple, whorls concavely sloping, spirally linearly 

 grained, rows of grains alternately larger. 



Trochus Antonii, Koch, Phd. AbbOd. pi. i. f. 4. 

 Zizyphinus Antonii, Adams. 



Hah. Australia. 



Of a peculiar silvery-grey colour, sparingly dotted and 

 streaked with dark purple. 



Species 32. (Pig. a, b, Mus. Cuming.) 



Zizyphinus similaris. Zizyph. testd subacuminato- 

 conicd, flavescente, pxirpureo-roseo nebulatd et arti- 

 culatd, anfractibus pluno-dedioibus, dense spiraliter 

 grano-liratis, interstitiis exiinie reticulatis, anfractuum 

 viargine inferiori angulato-bifaniculato. 



The similar Zizyphinus. Shell rather acuminately 

 conical, yellowish, clouded and articulated with purple 

 rows, whorls flatly sloping, densely spirally grain- 

 ridged, interstices faintly reticulated, lower margin of 

 the whorls angularly double-corded. 



Hab. Lizard Island, Torres Straits. 



We have already noticed that the European Z. conu- 

 loides appears in North-West Australia ; the present species 



Januarv, 1863. 



