479 



side-plates of segments 3, 4, and 5 large, their outer margin 

 being continuous with that of the peraeon ; terminal segment 

 narrow, triangular with sides slightly concave and reaching 

 well beyond the peduncle of uropods, and about as far as the 

 extremity of the inner branch. Uropod with basal joint 

 broad, grooved externally : exopod narrow, conical, about as 

 long as the terminal segment ; endopod reaching half-way 

 along the exopod and ending in two or three small setae. 



Colour. — Light brown with marblings and median stripe 

 of dark brown. 



Remarks. — In the general shape of the body, in the 

 carination of the antennae, the setae on the anterior legs 

 of the male, and in the triangular terminal segment this 

 species agrees well with the Indian species of the genus : on 

 the whole, it seems perhaps to come nearest to //. hispidus, 

 Obllinge, with which it agrees in the proportions of the joints 

 of the flagellum of the antennae and in the general covering 

 of the body, but it differs from that species in having the 

 median lobe of the head distinctly produced and convex, and 

 also in having the terminal segment longer and narrower. 



CUBARIS CLAYTONENSIS, 11. sp. 



Fig. 7. 



Locs. — Clayton Creek, 2 specimens; Higgins Dam, 1 

 specimen. 



Specific diagnosis. — Oval, strongly convex, whole surface 

 minutely granular, head and lateral portions of anterior seg- 

 ments of peraeon with a few larger granular markings. Head 

 much broader than long, frontal ridge not produced above 

 the dorsal surface of the head and slightly emarginate in the 

 centre. Epimeral plates of first segment very large, reaching 

 to the anterior margin of the head : lower margin turned 

 outward anteriorly so as to become almost horizontal ; pos- 

 teriorly it is split, inner tooth much smaller and shorter than 

 the outer : epimeron of second segment with tooth on the 

 inner surface near its anterior margin. Posterior margin of 

 first segment straight in centre, but with the epimeral portion 

 curving backwards. Epimera of segments 2 to 7 well deve- 

 loped, almost vertical, only sloping slightly outwards. Pleon 

 with the epimeral portions of segments 3, 4, and 5 largely 

 developed and fitting into the general outline of the body. 

 Terminal segment broader than long, narrowed in the middle, 

 its posterior margin straight and narrower than the anterior 

 margin. 



Antennae normal, slender, the two joints of the flagellum 

 equal. Uropods with the basal joint longer than broad, 

 exopod very small, inserted in a slight notch about the middle 



