AMPHIPODA AND ISOPODA FROM BARRINGTON TOPS. 97 



straight or very slightly convex, its upper surface bearing 

 two longitudinal ridges with a shallow between them. 



Antenna (fig. 21) with last joint of peduncle longer than 

 the two preceding together, flagellum as long as penulti- 

 mate joint of peduncle, its first joint about one-third the 

 length of the second. 



Peduncle of uropoda much longer than broad, extremity 

 rounded, outer ramus small, not reaching to the end of 

 peduncle, inner ramus reaching nearly to the end of the 

 anal segment. 



Length 11 mm. Breadth 5*5 mm. Height about 2*5 mm. 



Colour brown or dark brown, with marblings of a lighter 

 colour. 



Localities. Barrington Tops, (4,600 feet), N.S.W. (0. 

 Hedley); Mount Kosciusko, (R. Helms). 



This species appears to belong to Section VI in Budde- 

 Lund's Revision 1 of the genus Cubaris (which he called 

 Spherillo), the type of the section being Cubaris ambitiosus 

 (Budde-Lund), a species very common throughout the 

 greater part of New Zealand. It differs from that species, 

 however, in being less convex, and in having the sideplates 

 broader and projecting slightly outwards; this is particu- 

 larly noticeable in the anterior part of the first side-plate. 

 It is also distinguished from 0. ambitiosus by the notch in 

 the upper margin of the epistome, and by the two longi- 

 tudinal ridges on the terminal segments. 



The species also appears to be fairly close to C. cinctutus 

 (Kinahan), a species which has been recorded from the 

 Loyalty Islands by Stebbing, 2 and from New Caledonia by 

 Budde-Lund. In that species, however, the epistome is 

 produced to a much greater extent in advance of the head, 



1 G. Budde-Lund, Revision Crustacea Isopoda Terrestria, Copenhage n 

 1904, p. 52. 



2 T. K. E. Stebbing, Willey's Zoological Eesults, p. 651. 



G -June 7, 1916. 



