AUSTRALIAN MALACOSTRACA. Ill 



and cardiac regions. Lobe above the bases of the second and 

 third ambulatory legs small, not dentated. [M.~\ 

 Torres Straits. A widely distributed species. 



204. Plagusia glabra. 



Plagusia glabra, Dana, Proc. Acad. Nat. Sci. Philad., p. 252 

 (1851) ; U.S. Explor. Exped., xiii., Crust., i., p. 371, pi. xxiii., 

 fig. 10 (1852) ; M.-Edw., Ann. Sci. Nat. (3me ser.), xx., p. 179 

 (1853) ; Miers, 1. c, p. 151. 



Carapace smooth and glabrous, antero-lateral margin quadri- 

 dentate ; front above obliquely sub-cristate, not spinigerous. 

 Anterior legs of male very short, part of hand preceding fingers 

 shorter than its height, granulate above, smooth externally,, and 

 not costate ; wrist nearly smooth. Third joint of eight posterior 

 legs smooth. Third joint of outer maxillipedes quadrate, slightly 

 oblong. [Jf.] 



New South "Wales ; Moreton Bay. 



205. Plagusia chabrus. A.M. 

 Cancer chabrus, Linn. ; Syst. Nat., p. 1044 (1766). 

 Plagusia tomentosa, M.-Edw., Hist. Nat. Crust, ii., p. 92 



(1837) ; Ann. Sci. Nat. (3e ser.), xx., p. 178 (1853). 



Plagusia capensis, De Haan, Fauna Japon., Crust., p. 58 

 (1835). 



Plagusia chabrus, White, Ann. and Mag. Nat. Hist., xvii., 

 p. 497 (1846) ; Miers, 1. c, p. 152. 



Carapace covered with a very short close pubescence and 

 without tubercles. Eront armed above with two small spines, 

 and with a series of small tubercles on its anterior margin. 

 Anterior legs tuberculated. Ambulatory legs with a series of 

 spines on the upper margin of the merus joint ; lobes above 

 the bases of the second and third ambulatory legs terminating 

 in a short spine. \_M.~] 



New South Wales ; Tasmania. Eound also at the Cape of 

 Good Hope, in New Zealand, and on the coast of Chile. 



Genus Leiolophus. 

 Outer maxillipedes with the merus joint very small and much 

 narrower than the preceding joint. (Carapace with smooth 



