GS AUSTRALIAN MALACOSTRACA. 



116. Piluranus terrse-reginse. Plate i., fig. 5. A.M. 

 Pilumnus terrce-regince, Haswell, 1. c. 



Carapace convex, ornamented with scattered stiffisli hairs, a 

 patch of small granulations on the mesobranchial regions, and a 

 few others on the gastric region. Front rather deeply incised. 

 Antero-lateral borders with three prominent acute spiniform 

 teeth behind the orbital angle. Carpus of chelipedes with a few 

 granules on the outer surface, more prominent on the smaller 

 chelipede ; hand ornamented with numerous rounded granules 

 externally, more prominent and pointed on the smaller hand ; 

 a row of obscure granules on the lower border of the merus and 

 hand of the smaller chelipede ; two or three obsolescent granules 

 in the same position in the larger chelipede. Ambulatory legs 

 with scattered stiffish hairs. Length 7/lGths inch ; breadth 

 4/16ths. Colour reddish purple on the carapaee ; light red on 

 the legs ; fingers brown. 



PortMolle. (W.A.H.) 



The nearest ally of this species appears to be P. purpu/reus, 

 A. Milne-Edwards, from which it is mainly distinguished by 

 having the granulations on the carapace always numerous and 

 small, instead of few and large. 



117. Pilumnus vestitus. A.M. 

 Pilumnus vestitus, Haswell, 1. c. 



Allied to the preceding, and resembling it exactly in the form 

 of the front and the arrangement of the lateral spines or teeth ; 

 but distinguished from it by having the surface without distinct 

 granules, and by having the tubercles of the chelipedes few in 

 number and mostly spiniform. Carapace and legs covered with 

 stiff yellow hairs. Surface of carapaee mottled with red or 

 purple. Fingers dark brown. Length 9/lGths of an inch ; 

 breadth 11/lGths. 



Port Jackson ; Port Stephens. 



118. Pilumnus fissifrons. Plate i., fig. G. 



Pilumnus fissifrons, Stimpson, 1. c, sp. 91 ; Ilellei', Eeise der 

 Novara, Crust., p. 24. 



Body and feet densely and shortly pubescent. Carapaee 

 rather convex, arcolate anteriorly, bituberculate on both sides ; 



