108 FISH AND PISH-LIKE ANIMALS OF N.S.W., 



302a. T. triostegus. Banded Surgeon-fish. Chaetodon triostegus Lirnie, 

 Syst. Nat. 10th. ed., 1758, p. 274. Acanthurus triostegus Day, Fish. 

 India, 1876, p. 204, pi. 48, 2. 



A tropical species, which wanders southwards into our waters. Length 6 

 inches. 



302b. T. grahmoptilus. Surgeon-fish. Acanthurus grammoptilus Rich- 

 ardson, A.M.N.H., xi., 1842, p. 176. T. grammoptilus McCulloch, Mem. 

 Qld. Mus. vi., 1918, p. 92, pi. 28 (PI. xli.). 



Another tropical fish, rare on the New South Wales coast. Length 13 

 inches. 



303. Xesurus Jordan & Evermann, Rept. U.S. Fish. Comm. 1895 (1896), p. 

 421 (punctatus). 



303a. X. maculatus. Prionurus maculatus Ogilby, F. Zool. Soc. 1887, p. 



395. 

 Occasionally captured by line on the coast. Length 17 inches. 



304. Prionurus Lacepede, Ann. Mus. Hist. Nat. iv., 1804, p. 211 (microlepi- 



d-otus) . 

 304a. P. microlepidotus. Id. Lacepede, Ibid.. Id. Cuv. & Val., H.N. 



Poiss. x., 1835, p. 295, pi. 292 (PI. xli.). 

 Lives among rocks and feeds upon sea-weeds. Length 18 inches. 



CXXXVIII. Family Zanclidae. 



305. Zanclus Cuv. & Val, H.N. Poiss. vii., 1831, p. 102 (cornutus). 



305a. Z. canescens. Moorish Idol. Chaetodon caneseens Linne, Syst. 

 Nat. 10th. ed., 1758, p. 272. Z. cornutus Day, Fish. India, 1875, p. Ill, 

 pi. 28, 4 (PI. xli.). 

 A tropical species which only rarely strays southward of Queensland. Length 

 7 inches. 



Suborder Siganoidea. 

 CXXXIX. Family Siganidae. 



306. Siganus Forskal, Descr. Anirn., 1775, pp. x, 25 (rivulatus). 



A. Body with light spots above and stripes below. javus (306a). 



AA. Body with irregular dark brown spots. nebu/osus (306b). 



306a. S. javus. Teuthis javus Linne, Syst. Nat. 12th. ed., 1766, p. 507; 



Id, Day, Fish. India, 1875, p. 165, pi. 39, 5 (PI. xli.). 

 A tropical species, occasionally ranging into New South Wales waters. 



306b. S. nebulosus. Black Trevally. Amphacanthus nebulosus Quoy & 

 Gaimard, Vov. Uranie, 1825, p. 369. Siganus nebulosus Stead, Ed. Fish. 

 N.S. Wales, 1908, p. 81, pi. 49. 



Occasionally plentiful in Port Jackson, and more plentiful northwards. 

 Length 10 inches. 



(6'. sutor Cuv. & Val., has been included in a list of New South Wales fishes 

 by Waite, Mem. N.S. Wales Nat. Club, ii., 1904, p. 36, and Kner, Novara Zool., 

 i., 1865, p. 207, has recorded S. hejcagonta Bleeker, from Sydney. It is unlikely 

 that either species occurs within the waters of this State). 



