MOLLUSCA OF TASMANIA — PETTERD >XD HEDLKY. 293 



Obs. — This form is probably related to Ranfurlya coustancece, 

 Suter. 2 



Hob. — Not tli Tasmania, and extends to Victoria and N.S.Wales. 

 In the vicinity of Launceston this species is gregarious ; hiding 

 under logs in somewhat exposed positions. It is not l>y any 

 means abundant. 



Cystopelta bicolor, sj>. nov. 



Obs. — The most notable peculiarity of this undoubted new 

 species of Cystopelta is the striking colouration ; the contrast of 

 the rich brown upper surface with the bright green of the lower 

 portions of the animal at once arrests attention. 



The preliminary description ma}' be stated as follows : — Mantle 

 thick, does not nearly cover the whole animal, surface somewhat 

 rough and rugosely wrinkled, colour a rich chocolate-brown, 

 with minute specks of a darker shade ; foot, elongate, tapering, 

 of a bright pale-green colour ; mucus distinctly green ; tentacles 

 four in number, the upper smooth, black at apex ; lower part 

 short. Length, 22 millimetres ; width, 7 mill. 



This slug is apparently conhned to the western portion of the 

 island ; it is usually found singly in low trees. The specimens 

 were obtained in the head of a fallen Melaluca tree that had 

 smashed down on the scrub and let in the sun. The tree had 

 been down some time, as told by the litter of rotting leaves and 

 sticks. Other examples have been secured under logs, but it may 

 be considered that the animal is usually arboreal in habit and 

 thus, as well as in other respects, differing so essentially from 

 C. petterdi. From its habits it is rare or rather difficult to obtain. 

 All the specimens collected are exactly alike, except a slight 

 variation in size. 



Hab. — Magnet Range and Upper Pieman River. 



Genus L a o M A, Gray, 1849. 



Laoma weldii, Tenison Woods. 



(Plate lxxxiii., tigs. 8, 9, 10.) 



Helix weldii, Ten. Woods, Proc. Roy. Soc. Tas. (1876) 1877, 



p. 160. 

 Laoma tveldii, Suter, Ann. Mag. Nat. Hist., (6), xiii., 1894, p. Gl. 



Petterd, Mon. Tas. Land Shells, 1879, p. 23. 



2 Suter— Journ. Mai., x., 1903, p. 62, pi. iv. (from the Auckland 

 Islands, N.Z.) 



