24 EDIBLE FISHES OF NEW SOUTH WALES. 



Genus II.— MACQUARIA. 



Macqitaria, Cuv. & Val. Hist. Kat. Poiss. v. p. 377, 1830. 

 Murrayia, Castelu. Proc. Zool. Soc. Vict. 1872, i. p. 61. 

 Biverina, Castelu. Proc. Zool. Soc. Vict. 1872, i. p. 64 



Branchiostegals six : pseudobranchia^ present. Body oblong-OTate aud 

 somewhat compressed. Head with distinct muciferous channels. Opercle 

 with two spines, either or both of which may be subdivided into two or more 

 points : edges of sub- and interopercles finely serrated : preopercle serrated 

 on the vertical limb, the angle and lower limb with patches of coarser denticles . 

 Teeth villiform on the jaws and vomer : a few teeth present or absent on the 

 palatines. One dorsal fin moderately notched, with eleven or twelve spines: 

 the anal with three. Scales moderate, ctenid, present on the occiput : bases 

 of vertical fins scaly. Pyloric appendages in small numbers. 



Geographical distribution. — Murray Kiver system. 



MACQUARIA AUSTRALASICA. 



Macquaria australasica, Cuv. & Val. Hist. Nat. Poiss. v. p. 377, pi. cxxxi 



1830 ; Less. Voy. Coquille, Zool. ii. p. 194, pi. xiv. f. 1 ; Gnth. Catal. 



Fish. i. p. 286 ; Macleay, Catal. Austr. Fish. i. p. 59. 

 Dules riverinus, KrefEt, Proc. Zool. Soc. 1867, p. 913. 

 Murrayia r/untheri, Castelu. Proc. Zool. Soc. Vict. 1872, i. p. 61 ; Macleay, 



Catal. Austr. Fish. i. p. 56. 

 Murrayia cyprinoides, Castelu. Proc. Zool. Soc. Vict. 1872, i. p. 62 ; Macleay, 



Catal. Austr, Fish. i. p. 57. 

 Murrayia Iramoides, Casteln. Proc. Zool. Soc. Vict. 1872, i. p. 63 ; Macleay, 



Catal. Austr. Fish. i.p. 57. 

 Murrayia riveriua, Macleay, Catal. Austr. Fish. i. p. 58. 

 Biverina JIuviatilis, Casteln. Proc. Zool. Soc. Vict. 1872, i. p. 61 ; Macleay, 



Catal. Austr. Fish. i. p. 58. 



Macquarie's Perch. 

 Plate IV. 



B. vi. D. 12-11/11-12. A. 3/8-9. V. 1/5. P. 16. C. 17. L. lat. 17-52. L. tr. 

 8-9/17-19. Ca?c. pyl. 4. Vert. 12/18. 

 Length of head 8-40-3 70, of caudal fin 5-25-5-70, height of body 3-20-3-66 

 in the total length. Diameter of eye 3"50-4'80 in the length of the head, 

 1'00-1"50 in that of the snout, which is broad and truncate, and 1"00-1'40 

 in the convex interorbital space. Nostrils distant, the anterior subcircular, 

 tubular, and pierced on a higher level than the posterior, which is oval and 

 horizontal. Tip of the snout rounded, thence to between the posterior 

 margins of the eyes flat or very slightly concave ; occij)ut and anterior 

 dorsal profile gibbous. L^pper jaw a little the longer. Cleft of mouth 

 rather small, transverse, and oblique, the maxilla reaching to beneath 

 the posterior nostril. Upper surface of head with regular series of large 

 pores in pairs, two on the front of the snout, two above the nostrils, 

 and two inside the supraciliary edge ; the median cejihalic groove with a 

 single pore in front and behind ; sides of the head Avith two series, the 

 upper skirting the suborbital ring, the lower from the chin to the upper 

 angle of the preopercle. Preorbital serrature almost obsolete in large 

 examples : vertical limb of preopercle slightly concave, serrated ; the angle 

 rounded with rather larger teeth ; horizontal limb with coarser denticles, 

 which are generally arranged in groups : opercle with two strong, broad, flat 



