MCCULLOCH. 4 i 



166a. 0. macquariensis. Murray Cod. Grystes macquariensis Cuv. & 

 Val., H.N. Poiss. iii, 1829, p. 58. 0. macquariensis McCoy, Prodr. 

 Zool. Vict. Dec.ix, 1884, pi. 85-86 (PI. xviii). 

 A most valuable foodfish, inhabiting' the Murray River system and the head 

 waters of some northern streams. It varies considerably in form and colour- 

 marking, and one variety with trout-like marking's and an overhanging upper jaw 

 has been regarded as a distinct species under the name of Trout Cod, Oligorus 

 mitchelli Castelnau. Length to 5 feet. 



107. Percalates Ramsay & Ogilby. P.L.S.N.S.W. (2) ii. 1887, p. 182 

 (colonorum) . 

 167a. P. colonorum. Australian* Perch. Lates colonorum Gthr., A. M.N.H. 

 (3) xi, 1863, p. 114. Dules novemaculeatus Steindachner, Sitzb. Akad. 

 Wiss. Wien liii.i, 1866, p. 5. pi. 2, 1 (PI. xviii). 

 Another important food-fish, inhabiting the coastal rivers and descending to 

 the salt-water estuaries. Its variations in form and colour have led to the sup- 

 position that there is more than one species, but deeper bodied estuarine specimens 

 are linked up with the more slender fresh-water examples by a chain of inter- 

 mediate forms. Length 20 inches. 



~ 168. Plectroplites Gill, P. Ac. Nat. Sei. Philad., 1862, p. 236 (ambiguus). 



168a. P. ambiguus. Golden* Perch. Datnia ambiguua Richardson, Ichth. 



Erebus & Terror, 1845, p. 25, pi. 19. Ctenolates ambiguus McCoy, 



Prodr. Zool. Vict. Dec. ix, 1884, pi. 84 (PI. xviii). 



Another very valuable food-fish, occurring abundantly in the western river 



system. Length 2 feet. 



169. Macquaria Cuv. & Val., H.N. Poiss. v, 1830, p. 377 (australasica) . 

 169a. M. australasica. Macquarie Perch. Id. Cuv. and Val., Tom. tit., 



pi. 131; Id. Lesson, Voy. Coquille, Zool. ii, 1826, p. 194, pi. 14, 1 (PI. 

 xviii ) . 

 Abundant in some western waters, and occurring in a few coastal streams also. 

 Length 15 inches. 



170. Ttterapon* Cuvier (Terapon in error), Reg. Anim . ii, 1817. p. 295 (xer- 



vtts) . 



A. Lower opercular spine produced beyond opercular lobe; a dark blotch on the 



spinous dorsal. servus (170a). 



AA. Lower opercular spine not produced beyond opercular lobe; no dark blotch 



on the spinous dorsal. 



B. Suprascapular bone not exposed, hidden by scales. unicolor ( 170b I . 



BB. Suprascapular bone exposed, not hidden by scales. bidyana (170c). 



170a. T. skrvus. Holocentrus servus Bloch, Ausl. Fisehe iv, 1790, p. 80, 

 pi. 238, 1; T. jarbua Day. Pish. India, 1875, p. 69, pi. 18, 4 (PI. xix). 

 A tropical marine species occasionally wandering into New South Wales 

 waters. Length 8 inches. 



170b. T. unicolor. Spangled Grunter. Id. Gunther, Brit. Mus. Cat. 

 Fish, i, 1859. p. 277; Id. Ogil. & McCull., Mem. Qld. Mus. v, 1916, p. 

 109, pi. 11, 1 (PI. xix). 

 A small species occurring in the western rivers of New South Wales. 



