ISOPODA FEOM NEW ZEALAND. 425 



Family Oniscid^. 



CuBARis suTERi, sp. nov. (PL 37- figs. 24-28.) 



Specific description : — Oblong oval, breadth rather more than half the 

 length; epimeral portions fairly well developed especially in the first segment 

 of perseon; central portion of each segment very convex, sculptured^ and 

 produced into transverse crests. Head with the anterior margin turned 

 upwards into a well-defined ridge which is without a notch in the centre, 

 behind this is a slight depression followed by an irregular transverse ridge 

 in front of the hind margin. First segment of pera3on with epimeral portion 

 large, projecting almost horizontally, produced anteriorly almost as far as the 

 antero-lateral angle of the head ; each segment of perseon with its posterior 

 margin produced dorsally upwards into a vertical ridge extending transversely 

 throughout the whole of the central portion ; this ridge becomes better 

 marked in the more posterior segments until in the seventh segment it 

 forms a distinct well-marked flange on the central portion of the segment 

 with its upper margin depressed in the centre and its lateral angles rounded; 

 in front of the posterior ridge of each segment there is a number of small 

 tubercles on each side of the median line ; on the more posterior segments 

 these are better marked and end more acutely ; on the anterior segments 

 they are more rounded. The inferior margin of first segment of perseon 

 (fig. 26) is deeply cleft posteriorly for reception of the succeeding segment, 

 and the inferior margin of the second segment bears a well-marked tubercle 

 on its inner surface enclosing a notch for the reception of the succeeding 

 segment. Pleon (fig. 25) almost smooth, epimeral portions well developed, 

 projecting almost horizontally ; last segment of usual shape, its posterior 

 margin slightly concave. 



Eyes of moderate size, composed of numerous facets. Antennse (fig. 27) 

 normal^ minutely setose ; flagellum much shorter than terminal joint of 

 peduncle, its first joint about one-fourth the length of the second. External 

 ramus of the uropoda very small, inserted in a small notch on the inner 

 margin of the expanded base, not visible from below ; internal ramus very 

 small and short forming a small knob, hardly projecting from the base (see 

 fig. 28). 



Length. About 8 mm. 



Colour. Light brown, nearly the whole of the body being covered with 

 marblings of a darker brown. 



Habitat. Henderson, Auckland, a single specimen (//. Suter). 



This species, of which I have only the single specimen, can readily be 

 distinguished from all other New Zealand species by the sculpturings oh the 

 dorsal surface. The only other one known with sculpturings at all similar 



