MCCULLOCH. 39 



102. PARAPEGASUS Dumeril, Hist. Nat. Poiss. ii, 1870, p. 492 (nutans). 



102a. P. natans. Regasus natans Linn.. Syst. Nat. 12th ed. i, 170(5, p, 41S. 

 Parapegasus natans McCulloch, Biol. Res. Endeavour iii, 3. 1915, p. 110, 

 fig. 2 (PI. x). 

 Two specimens are in the Australian Museum from Lake Maequarie and Tug- 

 gerah Lakes. Length 5 inches. 



Garfish, Flying Fish, and Long Tom.— Order SYNENTOGNATHL 

 Fins without spines. Ventral tins abdominal. Lateral line forming a raised 

 ridge along the lower surface of the body. 



A. Dorsal and anal fins followed by several detached finlets; both jaws produced 

 into a beak. Family Sco»iberesocidae (No. lviii. 



AA. No detached finlets behind the dorsal and anal fins. 



B- Both jaws produced into a long toothed beak. Family Belotiidac (Xo. Iviii) . 

 BB. Jaws either equally short or only the lower jaw produced. 

 C. Jaws short, subequal; pectoral fins enlarged for flight. 



Family Exocoeiidae (No. lix). 

 CC. Lower jaw more or less produced into a beak; pectoral fins usually short 



Family Hcnrirhamphidae (No. lx). 



LYII. Family Scojiberesocidae. 



103. Scomberesox Lacep., H . N. Poiss. v, 1803, p. 344 (camper!). 



103a. S. forsteri. Bill-fish. Id. Cuv. & Val., H. N. Foiss. xviii, 1846, p. 

 481. Scombreso.r saurus vnr. forsteri McCoy. Prodr. Zool. Vict. dec. xiv, 

 1887, pi. 135, 2 (PI. is). 

 A pelagic species occasionally occurring- in shoals. Length 15 inches. 



LVIII. Family Belonidae. 



A. Body little compressed, its breadth more than two-thirds its greatest depth. 



Tylosiirns ( 104 ) . 

 AA. Body much compressed, its breadth less than half its greatest depth. 



Athlennes (105). 



104. Tylosurus Cocco, Giorn. Sci. Lett. Sicilia xlii No. 24, 1833, p. 18 (can- 



traitiii). 

 A. Caudal peduncle as broad as deep. 



B. Anal with 25-26 rays. ferox (104a). 



BB. Anal with 19-21 rays. macleayana (104b). 



AA. Caudal peduncle much deeper than broad. krefftii (104c). 



104a. T. ferox. Slender Loxg Toil Bclone ferox Glhr., Brit. Mus. Cat. 

 Fish, vi, 1866, p. 242. T. ferox Stead, Ed. Fish. N.S. Wales, 1908, p. 

 34, PI. 10. 

 A very voracious species, common on the coast. Length 3 feet. 



104b. T. macleayana. Stout Loxg Ton. Belone macleayana Ogilby, Cat. 

 Fish. N.S. Wales, 1886, p. 53. T. macleayana Stead, Ed. Fish. N.S. 

 Wales, 1908, p. 35, pi. 10 (PL is). 

 Abundant in estuaries and coastal waters. Length to 4 feet. 



104c. T. krefftii.' Belone krefftii Gthr., Brit. Mus. Cat. Fish, vi, 1866, p. 250. 

 A little known species which has been recorded from this State on unreliable 

 authority. 



