Iredale. — Mollusca of the Kermadecs and Norfolk Island. 499 



Whilst the twentieth was a semi-amphibious creature recognized as 

 " Barleeia " / chrysomela Melvill and Standen, described from the Lifu 

 Group. The reason the Tornatdlina spp. are unnamed is that just after 

 I had examined the species I noted that Dr. Pilsbry, of the Philadelphia 

 Academy of Sciences, had in preparation a monograph of this difficult 

 group, and I therefore at once sent him my material to incorporate in his 

 work. This has not yet appeared, but it will do so in the near future. 



III. List of the Norfolk Island Land Mollusca. 



The Norfolk Island land Mollusca were studied by Sykes from collec- 

 tions at the British Museum, chiefly made by John Macgillivray in 1855, 

 and the results published in the Proc. Mai. Soc. (Lond.), vol. iv, p. 139 

 et sen., 1900. Twenty-five species were recorded, and the conclusion arrived 

 at was, " As pointed out by Professor Tate and others, the faunal relation- 

 ship of Norfolk Island lies rather with New Zealand than with the 

 Australian Continent.'" This sentence would imply the recognition of 

 characteristic New Zealand forms in the Norfolk Island fauna, but the 

 list here given, with Sykes's nomenclature, does not show any such. Sykes 

 recorded, — 



Microcystis nux Sykes. Charopa ? depsta Cox. 



? quintali Cox. 

 ? patescens Cox. 



castaneocincta Sykes. 

 Trochonanina platysoma -Sykes 

 Fretuni phillipii Gray. Endodonta norfolkensis Hedley. 



■ suteri Sykes. Succinea norfolkensis Sykes. 



grayi Sykes. Vertigo norfolkensis Sykes. 



Rotula campbeUii Gray. Omphalotropis breuchleyi Sykes. 



Medyla insculpta Pfeiffer. albocarinata Mousson. 



imitatrix Sykes. cerea Pfeiffer. 



Sitala macgillivrayi Sykes. navigatorinn Pfeiffer. 



Carthaea stoddarti Gray (incl. 0. flos- 



culus Cox). 

 Charopa exagitans Cox. 



suteri Sykes. 

 Diplommatina coxi H. Adams. 

 Paludestrina norfolkensis Svkes. 



Accepting the generic names used by Sykes, out of fourteen genera 

 admitted only five have been included in the Neozelanic fauna. Two of 

 these five have only scare and doubtful records from the extreme north 

 of New Zealand, two others are the Polynesian Charopa and Endodonta, 

 whilst the fifth is the Neozelanic endemic Carthaea. In this last case there 

 is not a very close resemblance to the New Zealand shell, and the generic 

 location is apparently quite wrong. 



It will at once be seen that there is no close relationship between 

 the Kermadec and Norfolk Island faunas when my list and Sykes's are 

 placed side by side. However, as the greater proportion of my forms 

 were minutiae, and as such minutiae were not represented in Sykes's Norfolk 

 Island collection, no critical comparison could be made. What was certain 

 was that Norfolk Island was inhabited by quite a different and more vigorous 

 shell fauna, but the sequel is altogether beyond the imagination of the 

 most sanguine conchologist. 



Mr. Roy Bell's collection, which certainly does not include all the forms 

 living on the Norfolk Island group, shows that on the main island over 

 forty distinct species live, whilst some five or 6ix are known as subfossil 



