10 SUBANTARCTIC ISLANDS OF NEW ZEALAND. [Mollusca. 



Monodonta (Diloma) nigerrima (Gmelin), 1790. 



Turbo nigerrimus, Gmelin, Syst. Nat., ed. 13, p. 3597. Monodonta nigerrima, Gmelin, 

 Man. Conch. (1), xi, p. 97, pi. xxiii, figs. 77, 78; pi. xx, fig. 18. Trochus 

 araucanus, d'Orbigny, Voy. Amer. Merid., p. 410, pi. Iv, fig. 6. Turbo 

 quoyi, Kiener, Spec. Icon., Turbo, pi. xxix, fig. 2. Monodonta porcifera, 

 Watson : Suter, P. Mai. S., ii, p. 264 (not of Adams nor of Watson). 

 Trochus gaudichaudi, Hupe, in Gray, Hist. fis. Chile, Zool., viii, 1854, 

 p. 146, pi. iv, fig. 4. 



Hab. — Auckland Islands (Professor Benham, E. R. Waite). 

 Also Sumner, St. Clair, Preservation Inlet, Stewart Island, and west coast of 

 South America. 



Monodonta (Diloma) coracina (Troschel), 1851. 



Trochus coracinus, Troschel, in Philippi, Conch. Cab., 1851, p. 148, pi. xxiv, fig. 13. 

 Monodonta coracina, Troschel, Man. Conch. (1), xi, p. 103, pi. xix, fig. 94; 

 pi. xxxi, fig. 28. Labio porcifera, A. Adams, P.Z.S., 1851 (1853), p. 179. 

 Diloma nigerrima, Chemnitz : Hutton, M.N.Z.M., p. 96 (not of Chemnitz). 



Hab. — Auckland Islands (Captain Hutton). 



Also coast near Kawhia, Wellington, South Island of New Zealand, and Chatham 

 Islands. 



Monodonta (Neodiloma) aethiops (Gmelin), 1790. 



Turbo aethiops, Gmelin, Syst. Nat., ed. 13, p. 3596. Monodonta aethiops, Gmelin, 

 Man. Conch. (1), xi, p. 98, pi. xix, figs. 99-100; pi. xx, fig. 19. Trochus 

 zelandicus, Q. and G., Voy. " Astrolabe," iii, 1834, p. 257, pi. Ixiv, 

 figs. 12-15. Monodonta reticularis. Gray, in Wood's Suppl., fig. 21. ? Labio 

 concolor, A. Adams, P.Z.S., 1851, p. 180. 



Hab. — Auckland Islands, teste Hutton. 

 Throughout New Zealand and Chatham Islands. 



Genus Cantharidus, Montfort, 1810. 

 Distribution. — Australasian seas. 



Cantharidus opalus (Martyn), 1784. 



Limax opalus, Martyn, Univ. Conch., i, fig. 24. Trochus iris, Gmelin, Syst. Nat., 

 ed. 13, 1790, p. 3580. Cantharidus iris, Gmelin, Man. Conch. (1), xi. 

 p. 122, pi. xxxiv, fig. 15. Cantharidus zealandicus, A. Adams, P.Z.S.. 

 1851, p. 169. 



Hab. — Snares Islands (Professor Chilton). 



Also from Cape Maria van Diemen to Cook Strait, Preservation Inlet, Chatham 

 Islands, and Kermadec Islands. 



