FISHERY BULLETIN: VOL. 82, NO. 4 



FIGURE 66.— Scomber omor us semifasciatus. Queensland, 451 mm FL. (From Munro 1943:pl. 6A.) 



95); C. tigris a synonym of S. semifasciatum); 

 fig. 3 (holotype of C. semifasciatum), fig. 4 

 (holotype of C. tigris). 



Cybium tigris De Vis 1884:545 (original descrip- 

 tion; Cape York). 



Scomberomorus semifasciatum. McCulloch and 

 Whitley 1925:142 (Burdekin R.; after Macleay 

 1884a, b). 



Scomberomorus tigris. McCulloch and Whitley 

 1925:142 (Cape York; after De Vis 1884). 

 McCulloch 1929:265 (Cape York; after De Vis 

 1884). 



Scomberomorus semifasciatus. McCulloch 1929: 

 264 (Burdekin R. ; after Macleay 1884). * Mun- 

 ro 1943:91-95 (description, range, synonymy), 

 pi. 6A (451 mm FL specimen from Mackay Dist., 

 N Queensland), fig. 4 (45 and 58 mm juvs., 

 Townsville, N Qld.). Coates 1950:23 (descrip- 

 tion), fig. Fraser-Brunner 1950:159 (descrip- 

 tion, range and synonymy in part). Roughley 

 1951, 1953:110-111 (description), pi. 45, fig. C 

 (after Munro). Jones and Silas 1964:57-58 (de- 

 scription, range), fig. 10 (after Munro). Taylor 

 1964:282 (description, references, specimens 

 from Nightcliffe, N. Territory). Marshall 

 1964:365-366 (description; Qld.), pi. 50, figs. 350 

 A & B (after Munro). Marshall 1966:205 

 (Qld.), pi. 50, figs. 350 A & B (after Mun- 

 ro). Richards and Klawe 1972:14 (range), 95 

 (references to juveniles). Magnuson 1973:350 

 (short pectoral fin). Kailola 1975:237 (3 collec- 

 tions from Gulf of Papua in Kanudi Fisheries 

 collection). Shiino 1976:231 (common name). 

 Klawe 1977:2 (common name, range). Collette 

 1979:29 (characters, range). Collette and 

 Russo 1979:13 (diagnostic characters, range). 

 Grant 1982:630 (description, fishery in Qld.), 

 631 (color pi. 328). Cressey et al. 1983:264 

 (host-parasite list, 5 copepod species). Collette 

 and Nauen 1983:76-77 (description, range), 

 fig. Jenkins et al. 1984:345, 348-351 (101 lar- 



vae, 3.3-10.5 mm SL; off Townsville, Qld.), fig. 2 

 (6 larvae, 3.8-10.5 mm SL). 



Indocybium semifasciatus. Fraser 1953:6 (abun- 

 dant along NW coast of Western Australia). 



Indocybium semifasciatum. Whitley 1947:129 

 (Western Australia). Whitley 1948:24 (W. 

 Australia). Whitley 1954:27 (between Darwin 

 and Pt. Charles, Northern Territory). Munro 

 1958a:112 (description, range), fig. 752. Whit- 

 ley 1964a:252 (description, range in part; ma- 

 terial from Qld., N. Territory, W. Australia). 

 Whitley 1964b:48 (listed). Grant 1965:173 

 (description after Munro), fig. Grant 1972: 

 106, 1975:164, 1978:194 (description after Mun- 

 ro; fishery in Qld.), fig. 



Types of nominal species. — Cybium semifascia- 

 tum Macleay 1884a. Holotype: AMS 1.18288; 

 lower Burdekin River, Queensland, Australia; A. 

 Morton; Aug. 1883; 285 mm FL; D ? + 20 + VIII; A 

 21 + VIII; Pi 24-24; RGRi 2+1 + 6=9; vertebrae 

 19+26 = 45. 



Cybium tigris De Vis 1884. Holotype: QM 

 1.119; Cape York, Queensland, Australia; K. 

 Broadbent; 286 mm FL; D XIV +19 + IX; A 21 + 

 IX; P x 24-24; RGR X 2 + 1 + 7 = 10. 



Diagnosis. — This species has wider lateral keels 

 on the caudal peduncle than other species in the 

 genus, but this is difficult to quantify and so is not 

 a very useful diagnostic character. Superficially 

 similar to S. commerson in having prominent 

 vertical bars on the sides (specimens over 700 mm 

 FL lose their bars), but the bars are much wider 

 (Fig. 66) than the many narrow bars of S. commer- 

 son. Also differs in lacking an abrupt downward 

 curve in the lateral line under the second dorsal 

 fin, in having fewer spines in the first dorsal fin 

 (15 or fewer vs. usually 16 or 17), and in having 

 more gill rakers on the first arch (6-13, usually 9 

 or more vs. 1-8, usually 6 or less). Palatine tooth 



660 



