548 ON SOME NEW AUSTRALIAN BKACHYURA, 



protogastric region ; two slight ridge-like elevations near the 

 antero-lateral border, and another running obliquely parallel to 

 the postero-lateral border. Front straight, faintly notched in 

 the middle. Inner orbital angle acute. Antero-lateral borders 

 with four teeth, each of which is carinated. Anterior legs (in 

 the male) dilated ; arm with a strong tooth above near its distal 

 end, separated distally by a transverse groove from a second 

 lower transverse elevation ; wrist with a small tooth at the distal 

 and internal angle, very hairy externally ; hand smooth, with a 

 longitudinal ridge close to the inferior border, and two rounded 

 elevations between the bases of the fingers. Ambulatory legs 

 long and slender, the three terminal joints hairy above and 

 below. Length fihs inch ; breadth £ inch. 



Hah. Off Holborn Island, near Port Denison, 20 fathoms. 



This species is a near ally of E. crenatm, De Haan, (of 

 which there is a specimen from Japan in the Australian Museum) 

 but is distinguished from it by the presence of the short ridges 

 on the lateral portions of the carapace, by the shape of the lateral 

 teeth, and the acuteness of the internal orbital angle. 



Eucrate sexdentatus, n. s. 



Carapace convex, faintly granular at the sides, without ridses 

 or grooves. Front as in the preceding species. Internal orbital 

 angle not conspicuous. Antero-lateral margin three-toothed, 

 teeth not carinated, the last spinous, separated by a slight 

 interval from the second. Anterior legs nearly as in the pre- 

 ceding species, but the second elevation on the upper border of 

 the arm inconspicuous, and the tooth on the wrist more prominent 

 and acute ; ambulatory legs with fewer and shorter hairs. 

 Carapace with about twenty red spots. Length fths inch ; 

 breadth iVths. 



Hub. Off Holborn Island, Port Denison, 2(J fath. 



