AUSTEALIAN HALACOSTEACA. 103 



legs compressed, expanded, and ciliated. Abdomen in both sexes 

 seven- jointed, [il/.] 



185. Varuna litterata. A.M. 

 Cancer litteratus, Fabr., Suppl., p. 342 (1798) ; Herbst, 



Krabben unci Krebse, iii., p. 58, pi. xlviii., fig. 4 (1799). 



Trichopus litteratus, De Haan, Fauna Jap., Crust., p. 32 

 (1835). 



Varuna litterata, M.-Edw., Hist. Nat. des Crust., ii., p. 95 

 (1837) ; Miers, Cat. Crust. N.Z., p. 40 (1876). 



Carapace slightly punctate above, and marked in the middle 

 with an H, formed by the grooves which separate the branchial 

 and cardiac regions, etc. Lateral margins thin, and armed with 

 three very wide teeth. A granulous line upon each branchial 

 region, extending from the base of the last tooth to the point of 

 insertion of the last leg at some distance from the lateral margin, 

 which is also sharp and granulous. Front margin of the arms 

 with strong rounded teeth, hands slightly compressed, fingers 

 curved downwards and a little inward ; ambulatory legs large, 

 flattened and ciliate on the margins. (M.-E.) 



A widely distributed species, found also in New Zealand, the 

 Philippines, Japan, the Indian Ocean, etc. 



Sub-Family Sesarmince 

 Internal antennae concealed by the front. Third joint of the 

 external maxillipedes crossed by an oblique, usually piliferous 

 crest. (Body usually thick and convex). [_D.] 



Grenus Ctclogeapsus, M.-Edw. 



Carapace flat above, curving slightly downward anteriorly. 

 Front straight. Antero-lateral margins thin, entire. Eyes short. 

 Third joint of the external maxillipedes with the anterior margin 

 truncate or slightly emarginate. Abdomen of the male scarcely 

 narrower at base than the adjacent part of the sternum. Entirely 

 smooth, without spines and tubercles or hairs, except on the tarsi 

 of the ambulatory legs. [JLf.] 



186. Cyclograpsus lavauxi. A.M. 



Cyclograpsus audouinii, Dana, U.S. Explor. Exped., Crust, i., 

 p. 359, pi. xxiii. fig. 2 (1852) nee Edwards. 



