48 NOTES ON TASMANIAN CEUSTACEA, ETC. 



closely allied to be separated even specifically, is still an 

 ■undetermined point, the whole relationships of the Orchestidse 

 requiring to be carefully worked up. Oniscus pu7ictatus, the 

 common wood-louse of the bush, found along with the last 

 species under dead leaves, etc., is also common in New Zealand, 

 where it is associated with Orchestia sijlvicola. PorceUio 

 graniger, another common wood-louse of New Zealand, and 

 which has also been recorded from Tasmania, is not, as a 

 rule, found in the damp bush in the eastern colony. It 

 affects drier situations, and is the species which frequents 

 houses and gardens. It may prove to be a cosmopolitan species. 

 It is certainly likely to be widely spread by artificial means, as 

 New Zealand and Tasmanian ferns and other bush plants, 

 especially when packed for export in nurserymen's establish- 

 ments, are almost certain to contain specimens. The question 

 requires examination. Gustave Budde-Lund (Crust. Isop. 

 Terrestria) thinks that probably this species does not differ 

 from P. Ixi'is, a form found in nearly every country of the 

 world. 



I have, in this paper, described the new species of Amphi- 

 poda at — what may appear to some to be — undue length. 

 But in face of the confusion which has arisen in the past 

 from imperfect descriptions of species of this group, I think 

 it better to err in the direction of minute treatment than to 

 leave in doubt the characters of the forms which are being 

 described. 



The following species are described here for the first 

 time : — 



Gebia simsoni. 

 Anaspis tasmaniae 

 E-ocinela spongicola. 

 Lysianax stebbingi. 

 Atyloides tasmaniee. 

 Niphargus mortoni. 



montanus. 



The following species, already described, are here added to 

 the fauna of Tasmania : — 



Pinnixa faba, Dana (Australia, etc.) 



Petrolisthes elongatus. Heller (Australia & New Zealand). 



Leander intennedius, Stimpson (Australia). 



Oniscus punctatus, mihi (New Zealand). 



Ligia australiensis, Dana (New South Wales). 



Actoecia euchroa, Dana (New Zealand). 



Sphseroma gigas. Leach (Kerguelen Island, Australia, 



New Zealand, Auckland Islands, Falkland Islands, 



Tierra-del-Fuego) . 

 lais pubescens, Dana (Kerguelen Island, New Zealand^ 



and Tierra-del-Fuego). 



