80 EDIBLE riSHES OF NEW SOUTH WALES. 



shallow water." So far Mr. Sherriii is undoubtedly correct, but that the 

 succeeding sentence, " or from their sufterings caused by an iiritating isopod 

 crustacean that infects their gills at this season," is erroneous, is clearly 

 demonstrable by the facts that the equally infected New South Wales fishes 

 do not seek relief from their sufferings, if such there be, by any such 

 suicidal policy, while those which frequent the British coasts, where the 

 commensal is unknown, are notable in following it. In the southern pro- 

 vinces of New Zealand the species is rare. 



The Tellowtail grows to a length of twenty inches, but the more usual 

 size of the adult fish is about twelve ; the largest we have seen from the 

 Colony did not quite measure sixteen inches. 



CAEANX GEORGIANUS. 



Caranx georgianus, Cuv. & Val. Hist. Nat. Poiss. ix. p. 85, 1,833 ; Jenyns, 

 Voy. Beagle, Fish. p. 71; Richards. Ann Nat. Hisl. 1813, xi. p. 27, and 

 Yov. Erei). & Terror, Fish. p. 13-3, pi. Iviii. ff. 1-3 ; Gnth. Catal. Fish, 

 ii. p. 410; Casteln. Proc. Zool. Soc. Vict. i. 1872, p. 117; All. & Macl. 

 Proc. Linn. Soc. N.S. Wales, i. p. 327 ; Macleay, Catal. Austr. Fish. i. p. 

 168, and Proc. Linn. Soc. N.S. Wales, viii. p. 204; Johnston, Proc. Roy. 

 Soc. Tas. 1882, pp. 85, 119 ; Sherrin, Handb. N.Z. Fish. p. 99. 



Caranx chilensis, Gay, Hist. Chile, Zool. ii. p. 235, Ictiol. Atl. pi. vi. f. 2 ; 

 Steindachu. SB. Ak. Wieu, 1875, Ixxi. p. 459. 



White Trevally. 

 Plate XXIY. 



B vii. D. 8. 1 25-27. A. 2. 1122-24. V. 1/5. P. 20-21. C. 19. L. lat. 79- 

 81/19-22. Coec. pyl. 15. Vert. 10/15. 

 Length of head 4-00-4-40, of caudal fin 4-20-4-75, height of body 3-00- 

 3-50 in the total length. Eye rather small, with rudimentary adipose lid, 

 its diameter 4"00-4-75 in the length of the head, l-33-l*75 in that of the 

 pointed snout, and 1'20-1"50 in the convex interorbital space. Nostrils 

 approximate, oval, subequal. Upper jaw slightly the longer ; cleft of mouth 

 moderate and a little oblique ; the maxilla dilated posteriorly, reaching to 

 beneath the front margin of the orbit, or not quite so far. Upper surface 

 of head very slightly convex ; a low longitudinal ridge extending from the 

 interorbital space to the horizontal anterior spine. A single row of short 

 stout conical teeth in each jaw, usually supplemented by a few extra ones 

 at the symphyses: narrow bands of villifonn teeth on the vomer, palatines, 

 and tongue. Dorsal spines weak, much higher than the rays, the third the 

 longest, 2 00-2 'lO in the length of the head ; the distance between the base 

 of the first ray and the origin of the caudal is equal to that between the 

 same spot and the posterior margin of the orbit : the anterior anal spine 

 rises beneath the third or fourth dorsal ray : ventral fins reaching to the vent , 

 1-90-2-25 in the length of the head : pectorals long and falcate, reaching to 

 the vertical from the sixth to eighth anal ray, its length from one seventh to 

 one fourth longer than that of the head : caudal deeply forked, the height of 

 its pedicle much less than its width, which is equal to the distance between 

 its origin and the base of the last dorsal ray. Scales minute and adherent, 

 the breast scaly ; bases of the vertical fins with an adipose sheath. Lateral 

 line arched to beneath the middle of the rayed dorsal. Airbladder moderate. 



