BY W. MACLEAY, F.L.S. 331 



latter ; upper profile of head very slightly concave, notch and knob 

 of opercles conspicuous. The upper maxillary bone scarcely 

 reaches to below the middle of the eye. Caudal fin truncate or 

 very slightly emarginate ; pectoral not reaching to the anal; dorsal 

 spines slender, the third and fourth longest ; the second and 

 third of the anal about equal in length, the second stronger. 

 Eeddish with oblique streaks above, and longitudinal ones 

 beneath the lateral line, a broader blackish band from the eye to 

 the back of the tail, dorsal and caudal fins blackish, the others 

 yellowish ; no black sjpot at the base of the pectoral. 



North Australia. 



63. Mesoprion superbus, Casteln. 



Diacopus superhiis, Casteln., Proc. Linn. Soc, N. S. Wales, Vol. 



II., p. 228. 



Fully described in '^ he. cit.^^ Is found in Moreton Bay where 

 it is known as '' Eed Bass," and is said to be a good table fish. 



64. Mesoprion" OBscuRrs, n. sp. 

 D. 10/12. A. 3/8. L. lat. 48. 



Length of head and height of body alike and one-third of the 

 total length. Upper profile of head straight, eye about its own 

 diameter from the snout, the maxillary scarcely reaching to below 

 the middle of the eye ; prseoperculum finely serrated behind and 

 only slightly notched. Colour dingy black, with numerous narrow 

 indistinct cross-bands of a lighter hue; fins all more or less 

 blackish excepting the pectorals, tail truncate. 



Endeavour Eiver. 



65. Mesoprion roseigaster, n. sp. 



D. 10/13. A. 3/9. L. lat. about 40. L. tr. 6/15. 



Height of body and length of head about equal, and one third 

 of the total length. The diameter of the orbit is nearly one-fifth 



