On a nexo Terrestrial Isopod from New Zealand. 327 



XXVIII. — A neiv Tuherculate Terrestrial Isopod from New 

 Zealand. By Chas. Chilton, M.A., D.Sc, M.B., CJL, 

 LL.D., C.M.Z.S., Piot'essoi- of Biologj, Canterbury 

 College, New Zealand. 



[Plate XIII.] 



In 1915* I described a tuberculate species of Cuharis from 

 New Zealand under the name C. suteri. Of this species I 

 had only the one specimen, and I stated that of a second 

 tuberculate species, C. h/nniltoni, only a single specimen was 

 known, these facts showing that our knowledge of tlie 

 terrestrial Isopoda of New Zealand was still very incomplete. 

 I suggested also that a careful survey, especially in the 

 forests of the North Island, might bring to light otlier inter- 

 esting species. This has already proved to be the case, and 

 I have recently received from Mr. David Miller, of the New 

 Zealand Agricultural Department, several specimens of 

 another tuberculate Cuharis found under the bark of fallen 

 logs in the bush at Levin, Wellington. Of this species 

 Mr. Miller was fortunate enough to find eight specimens. 

 In general appearance, colour, markings, etc., they are very 

 similar to Cuharis suteri, and I at first thought that they 

 might perhaps be specimens of this species with the tubercles 

 on the dorsal surface better developed than in the type- 

 specimen. This, however, proves not to be the case, as the 

 tubercles, or, rather, ridges, are arranged differently, and I 

 am therefore describing the specimens as a new species, which 

 I have much pleasure in naming after their discoverer. 



Cuharis milleri, sp. n. (PI. XIII. figs. 1-6.) 



Specific description. — Oblong-oval, breadth about half the 

 length. Epimeral portions fairly well developed, especially 

 in the first segment of the pergeon ; central portion of eacli 

 segment very convex and marked off from the lateral portions 

 by a longitudinal ridge or flange on each segment (Hgs. 1 & 2). 

 Head with the anterior margin produced upwards into a well- 

 detined ridge projecting slightly above the dorsal surface and 

 having the ui)per margin regularly convex and without any 

 notch : the posterior surface of the head is produced dorsaliy 

 into a distinct transverse flange rising high above the general 

 surface and showing in front view much higher than the 



* Journ. Linn. Soc. vol. xxxii. p. 425, pi. xxxvii. figs. 24-28, 



