102 AUSTRALIAN HALACOSTRACA. 



Transverse ridge on the proto-gastric region well-marked, divided 

 by a narrow mesial furrow. Lateral borders very little arcbed 

 anteriorly. Anterior legs (in the female) small ; hand smooth, 

 with a low narrow ridge close to its lower border extending to 

 the tip of the lower finger ; fingers slightly spoon-excavate at 

 the tips. Last two joints of the ambulatory legs fringed below 

 with long hairs. Length of carapace -rs inch ; breadth i inch. 

 Colour dark brown. 



Port Denison. Found on the sea-shore; the species of the 

 genus hitherto described are inhabitants of fresh water. 



This species is allied to U. glabra, A. Milne-Edwards, but 

 differs from it in having the front less prominent, and in the 

 hairiness of the terminal joints of the ambulatory legs. 



184. Utica crassimana. Plate ii., fig. 3. A.M. 



JJtica crassimana, Haswell, 1. c. 



Upper surface of carapace smooth, naked. Margin of front 

 slightly concave. Lateral borders a little more arched than in 

 the preceding species. Anterior legs very large in the male ; 

 hand swollen, smooth ; fingers very widely gaping, the gap being 

 covered over by a thick bundle of hairs arising from the bases of 

 the fingers and the extremity of the palm ; a narrow ridge on 

 the outer surface of the lower finger not continued on the palm ; 

 inner borders of fingers finely toothed, apices slightly spoon- 

 excavate. Ambulatory legs finely tomentose, terminal and 

 penultimate joints fringed below with long hairs. Colour light 

 pink with purple markings. Length \ inch ; breadth inch. 



Holborn Island, near Port Denison, on the sea-shore. 



A near ally of U. larbimana, A. M.-Edw., but differing from 

 it in the relatively broader carapace, the larger hands, the more 

 arched fingers, hairy terminal joints of the ambulatory legs, and 

 other points. 



G-enus Varuna, M.-Edw. 



Carapace flattened, with the sides three-toothed, somewhat 

 arcuate anteriorly, straight and oblique posteriorly. Front with 

 the anterior margin straight. External maxillipedes with a 

 lozenge-shaped vacant space when closed, the third joint pro- 

 duced at the antero-external angle, the palpus broad. Ambulatory 



