ZIZYPHINUS.— Plate I. 



lirix aUernatioi majoribus, Uiiearihns, continnis, cur- 

 iieil, liris alhido H rufo tiitlde aiiicidatls, bnsi la;ci- 

 (jatd, circttlariter incisn, rufo remoli articulatd. 



The articulated Zizyphinus. Shell depressly conoid, 

 attenuated towards tlic apex, whorls depressly con- 

 vex, slightly angled at the periphery, spirally grain- 

 ridged, ridges alternately large, linear, continuous, 

 flesh-colour, ridges neatly articulated with red ; base 

 suiootli, circularly incised, distantly articulated with 

 red . 



Hab. ? 



A delicate depressly-conoid species in which the ridges 

 are alternately large and smaller, and uniformly narrow, 

 linear, and continuous. Tlie colouring is disposed in neat 

 articulations, which are present in a very characteristic 

 inauuer at the base of the shell. 



Species 4. (Mus. Cuming.) 



ZiZYPnlKDS TIGRIS. Zizypli. testa iriflato-conicd, versus 

 apicem, atteuuato-elevatd, anfractibus declun-convexis, 

 dense grano-lirath, liris laviusculis, siipei'Jiciariis, al- 

 t)ida, rufo-fusco imdiqne confertiiii oblique promiscuii 

 strigatd. 



The tiger Zizyphinu.s. Shell intlatcdly conical, atte- 

 uuately raised towards the apex, whorls slopingly 

 convex, densely grain-ridged, ridges rather smooth, 

 superficial, whitish, everywhere closely obliquely pro- 

 miscuously streaked with red-brown. 



Trorhus tigris, Martyn, Univ. Conch, pi. 73. 

 Ziryphinus tigris, Adams. 



Jlcd/. New Zealand. 



This fine species, the largest of the genus, is at once 

 distinguished by its handsome turban-like form, slopingly 

 convex and rather ventricose round the periphery, pecu- 

 liarly attenuately raised towards the apex. 



I Species 5. (Fig. a, b, Mus. Cuming.) 



Zizyphinus spect.4BILIs. Zi-yph. testa regulariter co- 

 noided, solidd, subponderosd, oiifrnctibus declivi-con- 

 vexis, grano-liratis, liris subdistnutibns, graiiis gran- 

 dibus, lirarum interstiliis lavibus, excavatis, cameo 

 autflavescente, liris rosaceo-rufo pnnctatis. 



The remarkable Zizyphin'us. Shell regidarly conoid, 

 solid, rather ponderous, whorls slopingly convex, 

 grain-ridged, ridges rather distant, grains large, in- 

 terstices between the ridges smooth, excavated, flesh- 

 colour or yellowish, ridges dotted with pinkish-red. 



Adams, Pro. ZooL Soc. 1854. p. 37. 



Hab. New Zealand. 



This fine species is conspicuously distinguished from 

 any other of the genus by its rather ponderous growth, 

 pinkish-red colour, and bold scidpture. The ridges are 

 almost squauiately grained, and the interstices between 

 them are smooth and excavated. 



Species 6. (Mus. Cimiing.) 



Zizyphinus Cunninghamii. Zizyph. testa late depresso- 

 conoided, apice attenuatd, anfractibus plano-declivibus, 

 parum convexis, ultimo ad basin subacute angulato, 

 grauo-Iiratis, liris subtiUbiis, iiiconspicuis, alternatim 

 minoribus, livido-carned, liris rufescente punctatis. 



Cunningham's Zizyphinus. Shell broadly depressly 

 conoid, attenuated at the apex, wdiorls flatly sloping, 

 but little convex, the last rather shai-ply angled at 

 the base, grain-ridged, ridges fine, inconspicuous, 

 alternately smaller ; livid fle-sh-colour, ridges dotted 

 with pale-red. 



Gray, Griffith's Cuv. Auim. Kingdom. 



Hab. New Zealand. 



A shell of rather delicate substance, depressed, and 

 unusually wide-spread at the base. 



