536 ON AUSTRALIAN SPKCIES OF PLATYSMA. 



III. 



The subgenus CoronocaniJms Macl. (1877) is perfectly valid, 

 but very near to Sarticus Motsch., as I have^ already indicated .*. 

 For Platysma {Coronocanthus) sulcatum Macl, (1877) = P/. quad- 

 risulcatum Chaud. (1878), it is necesaaiy to conserve Cliaudoir's 

 name, because the name " sulcatum " has been already occupied 

 in the genus Platysma (Bon.) Tschitsch f. 



I have two examples ( cT and § ) of this remarkable species 

 from the Northern Territory. 



* Lutshiiik, v., op. cit. 



t Gay, Hist. Chil. (Spanisli edition), iv. 1849, p. 223 {FeronomorpJia sulcata). 



