46 SUBANTARCTIC ISLANDS OF NEW ZEALAND. [MoUusca. 



Lasaea miliaris, Philippi, var. 

 Lasaea miliaris, Philippi, VViegraan's Archiv. f. Naturgesch., 1845, p. 51. 



Shell minute, oval, equivalve, inequilateral, dark red, with somewhat irregular 

 growth-lines ; beaks prominent, broadly rounded. 



Length, 2-5 mm. ; height, 2 mm. ; diameter, 1-3 mm. 



Hab. — Snares Islands (Captain J. Bollons) ; Auckland Islands (Professor Ben- 

 ham) ; Campbell Island (Professor Chilton). 



Also Macquarie Island, Chatham Islands, Whangaroa Harbour, Banks Peninsula, 

 Dunedin, and Stewart Island, 



Fam. SPHAERIIDAE, Dall. 

 Genus Sphaerium, Scopoli, 1777. 

 Distribution. — Almost world-wide, in lakes, ponds, and rivers. 



Sphaerium novae-zelandiae, Deshayes, 1853. 



Sphaerium novae-zelandiae, Deshayes, Cat. Conchif. Brit. Mus., 1853, p. 272 ; Conch. 

 Icon., XX, pi. iv, fig. 37 ; Suter, T.N.Z.I., xxxvii, p. 242, figs. 5-7 in text. 



Hab. — Auckland Islands, in a pool (Professor Benham). 



The specimens perfectly resemble specimens I collected at Birch Hill Station, 

 Tasman Valley. 



North and South Islands of New Zealand. 



Fam. MESODESMATIDAE, Deshayes. 



Genus Mesodesma, Deshayes, 1831. 



Distribution. — Mediterranean, east coast of North America, west coast of South 

 America, Indian Ocean, Philippines, and Australasia. 



Mesodesma australe aucklandicum, v. Martens, 1879. 



Mesodesma aucklandicum, v. Martens, Sitz. Ber. Gesell. Nat. Fr., Berlin, 1879, p. 37. 



A larger and more solid shell than M. australe. 



Hab. — Auckland Islands (H. Krone, Captain J. Bollons). 



Fam. VENERIDAE, Gray. 



Genus Chione, Megerle, 1811. 

 Distribution. — Almost cosmopolitan. 



Chione stutchburyi (Gray), 1828. 



Ventis stutchburyi, Gray, in Wood's Index Test., Suppl., 1828, fig. 4. Venus ze- 

 landica, Quoy and Gaimard, Voy. " Astrolabe," iii, 1835, p. 522, pi. Ixxxiv, 

 figs. 5, 6. Venus dieffenbachi, Gray, Dieif. N.Z., p. 250 (young shell). 



