136 AUSTRALIAN MALACOSTRACA. 



and forming large vaulted lateral expansions. Terminal joints 

 of the external maxillipedes not concealed. Anterior legs large, 

 and capable of being applied closely to the body, hands com- 

 pressed, with a high dorsal ridge. Ambulatory legs slender and 

 of moderate length, tarsi styliform. Abdomen of male five to 

 seven- jointed. 



260. Calappa hepatica. A - M - 



Cancer hepaticus, Linn. Syst. Nat., p. 1048 (1766). 



Calappa tiiberadata, Eabr., Ent. Syst. Suppl., p. 315 (1798) ; 

 Herbst, Kr., i., pi. xiii., fig. 78 (1796) ; M.-Edw., Hist. Nat. 

 Crust., ii., p. 106 (1837). 



Calappa hepatica, Miers, Cat. Crust. N.Z., p. 55 (1876). 



Carapace tubercular and granulous above, with about a dozen 

 triangular very distinct teeth on the antero-lateral margin, and 

 four wide flat acute teeth upon the front margin of the lateral 

 wings of the carapace, which are very large. Posterior margin 

 of the carapace entire, outer surface of the hands tubercular, 

 but without spines. 



Generally distributed in Eastern Seas. 



Family IV. DORIPPIDJS. 



Afferent channel of the branchial cavity situated on the 

 posterior portion of the pterygostomial region. Terminal joints 

 of the external maxillipedes not concealed by the preceding. 

 The two to four posterior legs sub-dorsal, prehensile. Genital 

 appendages of the male inserted on the sternum. [D.] 



Genus Dorippe, Latr. 

 Afferent aperture of the branchial cavity formed by a large 

 excavation of the pterygostomial region, and separated from the 

 base of the anterior legs. Last two pairs of legs elevated on 

 the carapace. Eyes retractile. 



261. Dorippe astuta. A.M. 



Cancer pinnoplujlax, Eabr., Ent. Syst., t. ii., p. 441 ; Linn. 

 Syst. Nat. 



Dorippe astuta, Eabr., Ent. Suppl, p. 361 ; M.-Edw., Hist. 

 Nat. Crust., ii., p. 157. 



