Chilton — Additio?is to Terrestrial Isopoda of New Zealand. 287 



several new species from New Zealand based on specimens collected by 

 Mr. Suter and others and sent to various European museums. I am by no 

 means certain that all of these new species can be upheld as distinct ; but, 

 pending further investigation, I give them in the list below. 



In his report on the terrestrial Isopoda collected by the German 

 Antarctic' Expedition, Budde-Lund (1906) has given an account of the 

 genus Trichoniscus, taking it, however, to include Titanethes, Haplo- 

 phthalmus, &c., which perhaps should be considered as separate genera. He 

 divides this large genus into several subgenera, of which Trichoniscus 

 is one, and this subgenus is further divided into groups according 

 to the character of the eyes. The European species of Trichoniscus 

 that are found habitually or occasionally in caves have more recently 

 been investigated and very fully described by Eacovitza (1907 and 1908), 

 who also divides the genus into subgenera, though his divisions do not 

 agree in all points with those suggested by Budde-Lund. It is evident 

 that a thorough revision of the New Zealand species of this group is 

 desirable, for until this is done I cannot arrange them in the subgenera 

 suggested by Racovitza. In the present volume (p. 190) I describe a new 

 species of Trichoniscus that is found in ants' nests, though some of the 

 specimens probably Uve independently of the ants. 



AVhen the necessary changes and additions have been made, it is seen 

 that the Ust of terrestrial species now numbers forty, included in twelve 

 genera. 



I give below a Hst of all the species now known from New Zealand, with 

 additional information where this is necessary. Budde-Lund in 1904 has 

 given a reclassification of the Oniscidce, but at present I merely give the 

 species in order, without attempting to arrange them in accordance with 

 Budde-Lund's suggestions. 



Revised List of the Terrestrial Isopoda op New Zealand, with 



Notes on New Localities, etc. 



(Only the more recent references have been given.) 



Ligia novce-zealandice, Dana. 



Chilton, 1901, p. 107. 



One specimen was taken in 1907 at Port Pegasus, in|^Stewart|Island, 

 the most southerly locality yet recorded for this species. 



Trichoniscus phormianus, Chilton. 



Chilton, 1901, p. 115; Budde-Lund, 1906, p. 83 



Trichoniscus otakensis. Chilton. 



Chilton, 1901, p. 117 ; Budde-Lund, 1906, p. 83. 



Trichoniscus thomsoni, Chilton. 



Chilton, 1901, p. 118, and 1909, p. 661 ; Budde-Lund, 1906, pp. 83, 84. 



Occurs on Auckland Islands, as well as'on mainland of New Zealand. T 

 Trichoniscus magellanicus (Dana). 



Budde-Lund, 1906, pp. 83, 84 ; Chilton, 1909, p. 661. 



Occurs on Auckland and Campbell Islands ; also Tierra del Fuegof'and 

 Falkland Islands. Perhaps identical with T. verrucosus, Budde-Lund, from 

 the Crozets. 



Trichoniscus commenbulis, Chilton. 



Described in the present volume, p.' 190. A species found in^^antsT nests. 



