3G0 RHIPLDOGLOSSATE AND DOCOGLOSSATE MOLLUSCA OP N.Z., 



ZiZYPiiiNrs spectabilis. Adams, Proc. Zool. Soc. of London, 

 1854, p. 37, pi. 27, fig. 7 ; Eeeve, Conch. Icon., fig. 5. 



Habitat. — Auckland ; Auckland Islands (Martens). 



Shell trochiform, rather solid ; about six spiral moniliform ribs 

 on the body whorl above the mouth ; umbilical region without 

 any callus. Base with rather coarse moniliform spiral ribs, and 

 round spots. 



The dentition is not known. 



B. whorls convex. 



Zizyphinus geanatdm. Chemnitz, Conch. Cab. V., figs. 1654-55 

 (1780). Trochus tigris, Martyn, Univ. Conch., pi. 75 (1784) ; 

 Eeeve, Conch. Icon., fig. 4. 



Habitat. — Auckland to Cook's Straits, Chatham Islands. 



Shell sub-trochiform, periphery rounded, rather solid. About 

 18 to 25 fine-spiral moniliform ribs on the body whorl above the 

 mouth. Umbilical region with a small callosity, the base similar 

 to the upper surface 



The dentition is unknown. 



Zizyphinus punctdlatus. Martyn, Univ. Conch, pi. 37, (1784) 

 after Spengler (1776) ; Eeeve, Conch. Icon., fig. 95. Turbo 

 diaphanus Lamarck, An. sans Vert.; Quoy and Gaimard, 

 Voy. Astrolabe, Zool. III., p. 254, pi. 64, figs. 1-5 ; Gray 

 Figs. Moll. Anim, I., pi. 40, fig. 1. Turbo grandineus 

 Valenciennes Voy. de la Venus, Zool. pi. 4, fig. 4. 



Habitat. — Cook's Straits to Dunedin. 



Shell turbinate, rather solid, suture impressed. About ten or 

 twelve spiral moniliform ribs on the body whorl above the mouth. 

 Umbilical region without any callus, the base similar to the 

 upper surface. 



The dentition is figured in the Trans. N.Z. Institute, XIV., pi. 

 8, fig. H. 



Genus. Canthabidus. Montfort. 



