AUSTBALIAST MALACOSTBACA. 179 



A specimen from Gippsland, in the Sydney Museum, may 

 belong to this species. There are, however, no distinct ridges 

 on the hand, though there are rows of obscure tubercles both 

 above and below. 



335. Engseus cunicularis. 



Engcem cunicularis, Erichson, 1. c. ; Von Martens, 1. c, p. 619. 



Hand rounded on the inner border, on the outer weakly 

 toothed. 



Tasmania (Schayer). 



Sub-Tribe Cabidea. 



Carapace smooth, without sutures. External antennae with a 

 large basal scale. The first and second pairs of legs chelate, one 

 pair or both often more or less enlarged ; third pair not chelate. 

 Branchiae phylloid. 



Family I. dRANGrONIDJE. 



Legs of the first and second pairs very unequal, the first pair 

 with the mobile finger closing against the anterior margin of the 

 palm, the immobile finger more or less rudimentary and spinif orm. 

 Second pair of legs with the wrist never annulated. Mandibles 

 simple, usually slender and incurved. Sternum usually triangular, 

 broader at base. 



Sub- Family Grangoninas. 



First pair of legs more robust than the second. External 

 maxillipedes pediform. 



Genus Rhyitchocotetes, M.-Edw. 



Carapace of normal shape, rounded above. Rostrum very 

 large, lamellate, compressed and articulated with the front. 

 Eyes prominent, and when retracted downward, received into a 

 cavity in the upper surface of the peduncle of the superior 

 antennae. Inferior antennas with a very long and stout flagellum. 

 External ■ maxillipedes pediform, elongate, slender, cylindrical. 

 Abdomen convex and geniculated above as in Sippolyie. 

 Anterior legs stout, with a well-formed hand, but with the 

 immobile finger somewhat rudimentary. Second pair more 

 slender, chelate. 



