62 ATTSTBALIAN MALACOSTBACA. 



103. Ohlorodius niger. AM - 



Cancer niger, Forskal. 



Ohlorodius niger, Milne-Edwards, Hist. Nat. des Crust., i, 

 p. 401 ; Dana, U.S. Explor. Exped., Crust., i., p. 216, pi. xii., 

 fig. 5 ; A. M.-Edw., Nouv. Arch, du Mus., t. ix., p. 214. 



Ohlorodius hirtipes, Adams and "White, Zoology of H.M.S. 

 " Samarang," Crust., p. 40, pi. x., fig. 4. 



Ohlorodius cytherea, Dana, 1. c, i., p. 213, pi. xii., fig. 2. 



Ohlorodius nebulosa, Dana, 1. c, t. 1., p. 214, pi. xii., fig. 3. 



Carapace nearly plane above, with a few smooth rounded 

 lobules on the hepatic and anterior branchial regions. Antero- 

 lateral borders with four lobes, of which the two last may be 

 acute. Anterior legs small, arm with a minute spine on its 

 anterior border, sometimes replaced by a few tubercles, wrist 

 with a blunt spine. Hand and fingers smooth. 



Port Jackson; Darnley Island, etc. A widely distributed 

 species. 



Family II. ERIPHIIDJE. 



Palate distinctly divided by a ridge defining the margin of the 

 efferent canal. Carapace usually narrow, sometimes broad, 

 antero-lateral margin rarely longer than the postero-lateral. 

 Eyes remote. 



Sub- Family Oziinoe. 



Carapace more or less transverse, not dilated at the sides. 

 Fingers acuminate. Internal antennae transverse. Orbit with 

 an internal hiatus occupied by the base of the antennae. 

 Abdomen of the male with seven articulations. 



Genus Oznrs, Leach. 



Carapace transverse, flattened. Antero-lateral margin usually 

 dentate and shorter than the postero-lateral. Palate with a 

 strong ridge on either side. External antennae with the basal 

 joint completely reaching the front, the flagellum entering the 

 internal orbital hiatus. Anterior legs with the fingers not 

 spoon-excavate at the extremity ; ambulatory legs of normal 

 shape, not cristate above. 



