426 PROI*. C. CHILTON ON SOME THREESTRIAL 



is Cuharis hamiltoni (Chilton) (1901, p, 148) *, but in that species the ridges 

 and flanges are far more numerous and are differently arranged. 



The fact that both these specimens are known from single specimens only 

 shows how incomplete our knowledge of the terrestrial Isopoda of New 

 Zealand still is. Probably a careful survey, especially in the forests of the 

 North Island, would bring to light several other interesting species. 



References. 



Chilton, C. 190] . — " The Terrestrial Isopoda of New Zealand/^ Trans. Linn. 



Soc. Lend., 2nd ser., Zool. viii. pp. 99-152, & p. 152 *, pis. 11 to 16. 

 Chilton, C. 1909. — "The Crustacea of the tSubantarctic Islands of New 



Zealand.'' The Subantartic Islands of New Zealand, pp. 601-671 



(with 19 figures in the text). Wellington, New Zealand, 1909. 

 Chilton, C. 1910. — "Additions to the Terrestrial Isopoda of New Zealand.-" 



Trans. N. Z. Inst., vol. xlii. pp. 28G-291. 

 Racovitza, E. G. 1907. — " Biospeologica — Isopodes terrestres (1'"'= serie).'' 



Archiv. Zool. Exper. et Gen., 4*^ serie, t. 7. 

 Racovitza, E. G. 1908. — "Biospeologica — Isopodes terrestres (2® serie)." 



Archiv. Zool. Exper. et Gen., 4** serie, t. 9. 

 Sars, G. 0. 1898. — An Account of the Crustacea of Norway, vol. ii. 



Isopoda, Parts ix. and x. Bergen, 1898. 

 Thomson, G. M. 1893. — " On a remarkably sculptured Terrestrial Isopod 



from New Zealand.-" Ann. & Mag. Nat. Hist. ser. 6, vol. xii. 



pp. 225-227, pi. 4. 







EXPLANATION OF THE PLATES. 









Plate 36. 



Fig. 1. 



Notoniscus helmsii 



(Chilton) ; dorsal view, X about 10. 



2. 



» 





antenna. 



3. 



j» 





maxilliped. 



4. 



}) 





extremity of maxilliped, more highly magnified. 



5. 



» 





first leg. 



6. 



)f 





first pleopod of male. 



7. 



}> 





second pleopod of male. 



8. 



j> 





nropod. 



9. 



Notoniscus australis (Cliilton) ; dorsal view, X about 12. 



10. 



jj 



)> 



antennule. 



11. 



if 



?> 



antenna. 



12. 



jf 



}) 



upper lip. 



13. 



)} 



» 



left mandible. 



14. 



}> 



» 



right mandible. 



16. 



}> 



7) 



lower lip. 



16. 



V 



V 



second maxilla. 



* See also G. M. Thomson (1893, p. 226). 



