358 RniriDOGLOSSATB AND DOCOGLOSSATE MOLLUSCA OP N.Z., 



Shell imperforate ; pinkish white varied with darker, interior 

 white. 



Variety. Iricolor. T. W. Kirk, Trans. N.Z. Inst. XIV., 

 p. 282 (1882). 



Habitat. — Auckland to Waikanae. 



Granules coarser ; dirty chocolate, interior bluish green. 

 The operculum and dentition are figured in Trans. N.Z. 

 Institute XV., pi. 14, fig. 1. 



Euchelus Hamiltoni. T. W. Kirk, Trans. N.Z. Institute XIV., 

 p. 283 (1882). 



Habitat. — Wellington. 



Shell perforate ; granules very fine. Pinkish white with spots 

 of darker in diagonal rows. 



Genus. Troctius. Linne. 



Sub-genus. Anthora. Gray. 



Trochus viridis. Gmelin, from Chemnitz Conch. Cab. V., figs. 

 1643-1644 (1781) ; Eeeve Conch. Icon., fig. 79 ; Polyodonta 

 tuberculata, Gray in DiefFenbach's New Zealand II., p. 239 

 (1843) ; Voy. Erebus and Terror, Moll., pi. 1, fig. 6. Trachus 

 acinosus, Gould, Pro. Boston Soc, Nat. Hist. III., p. 57 

 (1848). Trochus fulvilabris, Homb. and Jacq., Voy. Pole 

 Sud., Zool. V., p. 56, pi. 14, figs. 14-16 (1854). Tr. 

 tritonis, Adams, Pro. Zool. Soc. of London, 1854, p. 132. 

 Habitat. — Auckland to Dunedin. 



Shell with four nodulose spiral ribs on each whorl. Colour 

 purplish brown, the base pale brown. 



The operculum and dentition are figured in the Trans. N.Z. 

 Institute XV., pi. 14, fig. k. 



Sub-genus. Ccelotrochus. Fischer. 



Trochus tiarattts. Quoy and Gaimard, Voy. Astrolabe, Zool. 

 III., p. 256, pi. 64, figs. 6-11 (1834); Gray Figs. Moll. 

 Anim. I., pi. 40, fig. 3. Polyodonta elegans, Gray, in Yate's 

 New Zealand, p. 309 (1835). 



