I'UOCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



THE LAND MOLLUSCA OF STEWART ISLAND. 



By Henry Suter. — 



Rend 9th April, 1897. 



In March of this year Mr. Aug. Hamilton, of Dimedin, paid a short 

 visit to Halfmooii Bay, Stewart Ishiud, when ho coUected a number of 

 hmd-sliells, which he kindly sent me for investigation. 



Hitherto only four species of land- shells have been known from tliis 

 island, viz. : 



1. Flammulma {Phacussa) fulminata, Hiitton ; 



2. Flammulina iPyrrlia) cressida, Hutton ; 



3. Laoma {Phrixg^iathus) celia, Hutton; 



4. Rhytida australis, Hutton ; 



of which the first and last mentioned are endemic. 



Mr. Hamilton's collection comprised the following species : — 



1. Flammulina perdita, Hutt. One dead and partly broken shell. 

 This species is found over the whole of New Zealand, but is a rather 

 rare shell. 



2. Flammulina Feredayi, Suter. Two specimens, which correspond 

 exactly with my type-specimen from the Forty Mile Bush, North 

 Island. The species has also been found ou the Hunua llange and in 

 the Otaki Gorge, North Island. The var. glacialis I established on 

 specimens found in the Hooker Valley, South Island. 



3. Flammulina {Plienacohelix) granum, Pfr. Two specimens, which 

 are not adult, having only four whorls and a diameter of 2-5 mm., but 

 otherwise differing in no respect from specimens I have from the 

 North Island. I have not seen it yet from the South Island. This is 

 one of our very rare shells. 



4. Flaynmulina {Phiicussa) fulminata, Hutt. Five specimens, mostly 

 bleached. Two of them exceed the dimensions given by Captain 

 Hutton for this species. 



5. Flammulina {TJialansohelix) igniflua, Reeve, var. ohnulila, Reeve. 

 Eight specimens, bleached. They arc much smaller than the typical 

 F. ignifua, with diam. 7, alt. 4*5 mm., whorls Ah. I found similar 

 living specimens near Dunedin, and hence I think it advisable to 

 follow Pilsbry (Man. Conch., ser. ii, vol. ix, p. 13), and to distinguish 

 them as var. ohniihila, although they differ from the type only in size. 

 I have not seen this variety from any other part of New Zealand. 



6. Endodo)da {Charopa) hianca, Hutt. Two specimens only, which 

 do not differ from the typical form. Occurring over the whole of 

 New Zealand. 



7. Endodonta ( Charopa^ tapirina, Hutt. One young specimen, in 

 the colour-markings resembling specimens from Otago. 



