500 THE LAND AND FRESH-WATER MOLLUSCA OF NEW ZEALAND, 



Ariophanta novar^, PfeifFer, sp., 1862. 



This species was classed under Flammulina in the " Reference 

 List " (p. 644). On carefully examining jaw and radula I saw, 

 however, that it is in fact an Ai'iojyhanta [Nanina, Gray, non 

 Risso). The dentition will be described and figured in Vol. xxvi. 

 o the Trans. N.Z. Inst. 



Freshwater Shells erroneously ascribed to New Zealand. 



(1) Melanopsis wagneri, Roth, is mentioned as having been 

 found in Lake Rotoiti, which of course is quite wrong, as this 

 species, according to Mr. Hedley's kind information, is a synonym 

 of M. praerosa^ Linne, ranging from Syria, the Greek Islands, and 

 Algeria to Morocco. 



(2) Ancylus dohrnianus, Clessin, resembles somewhat ^4. irvinae, 

 Petterd, from Tasmania, but the apex is quite different. Neither 

 Prof. Hutton nor the writer has any knowledge of an Ancylus 

 ever having been found in this colony (Ancylus woodsi, Johnston, 

 being a Gundlachia), and Clessin's species may therefore help to 

 swell the already long list of shells erroneously ascribed to New 

 Zealand. 



Introduced Land Shells of New Zealand. 



(1) Vcdlonia pidchella, Mueller, was found by Mr. Cheeseman 

 in Albert Park, Auckland. 



(2) C ochlostyla fulgetrum,^ Broderip (^Bidi?)ius antipodarum, 

 Gray, 1843). JB. antipodarum is said to have been found at 

 Kaitaia by Dieffenbach, and recent collectors (Gillies, T. W. 

 Kirk) are reported as having found this shell at different places in 

 the northern part of the province of Auckland. Opinions are 

 divided as to the validity of the species ; some consider it as the 

 young of Placostylus bovimcs, others take it as a good species. I 

 therefore thought it well worth to investigate the question. 

 Looking at the figure of JBul. antipodarum given by Edg. A. 

 Smith (Voy. Erebus and Terror, II. Moll. pi. i. fig. 5), and reading 

 Gray's description one must come to the conclusion that this shell 

 cannot belong to the genus Placostylus, the aperture being quite 



