210: CARANGIDAE (KING FISHES)
4a In life, C hyaline to dusky yellow; lower GR
usually 32-39 ......................................................... D. russelli
D. russelli
4b In life, C red; lower GR 26-33 .............................................. 5
5a Margin of opercular membrane smooth; curved LL
scales 47-55; straight LL entirely of scutes ................ D. kurroides
0. kurroides
5b Margin of opercular membrane minutely serrated;
curved LL scales 61-71; straight LL with 4-10
scales anteriorly ......................................................... D. tabl
Redtail scad
D. tab!
210.25 Decapterus kurroides
Bleeker, 1855
Rooistert -skad
Decapterus kurroides Bleeker, 1855: 420 (Amboina).
D VIII + 1,28-29+ 1; A II + 1,22-25+ 1; LL (curved) 47-55 scales and 0-2
scutes, LL (straight) no scales and 31-36 scutes, LL (total) 80-86; GR
(10-12)+(30-33). Upper jaw with a narrow band of minute teeth
anteriorly. Margin of opercular membrane smooth.
Bluish green above, silvery white below; C bright red and
D lobe dark distally sometimes with pale tip; small black
210.25 Decapterus kurroides: 24 cm FL.
650
opercular spot. Attains 45 cm. A schooling species taken by
trawl in 100 - 300 m, but usually below 150 m. Not yet
reported from our area, but almost certainly present.
Known from Kenya, Tanzania and Reunion; also Japan,
Indonesia, Philippines and Australia.
210.26 Decapterus macarel/us
(Cuvier, 1833)
Mackerel scad
Makriel-skad
Caranx macarellus Cuvier, in Cuv. & Val., 1833: 40 (Martinique).
Caranx pinnulatus Eydoux & Souleyet, 1850: 163, PI. 3, Fig. 1 (Hawaiian
Ids. ).
D VIII + 1,31-36+ 1; A II + 1,27-30'+ 1; LL (curved) 58-75 scales and no
scutes, LL (straight) 14-29 scales and 24-40 scutes, LL (total) 110-138; GR
(10-13)+(34-38). Rear end of upper jaw moderately rounded and slanted
anteroventrally. Upper jaw without teeth. Interorbital scales usually
extending to above front margin of pupil.
Bluish green above, silvery below; C yellow-green and D
lobe sometimes dark distally; small black opercular spot.
Attains 32 cm. A schooling species, occurring mostly in
open water and common in insular habitats; sometimes at
surface but usually in 40 - 200 m. Knysna northward; a circum tropical species.
210.26 Decapterus macarelfus: 19.5 cm FL; gill chamber to show two small
papillae on cleithrum.
210.27 Decapterus macrosoma
Bleeker, 1851
Slender scad
Siank skad
Decapterus macrosoma Bleeker, 1851: 358 (Djakarta). Decapterus
lajang (non Bleeker): Smith, SFSA No. 532*; Smith & Smith, 1963: 127*.
D VIII + I ,33-38+ 1; A II + I ,27-30+ 1; LL (curved) 58-72 scales and no
scutes, LL(straight) 14-29 scales and 24-40 scutes, LL (total) 110-126; GR
(10-12)+(34-38). Rear end of upper jaw concave above, rounded and
produced below. Upper jaw without teeth. Interorbital scales not extending forward beyond rear margin of pupil.
4a In life, C hyaline to dusky yellow; lower GR
usually 32-39 ......................................................... D. russelli
D. russelli
4b In life, C red; lower GR 26-33 .............................................. 5
5a Margin of opercular membrane smooth; curved LL
scales 47-55; straight LL entirely of scutes ................ D. kurroides
0. kurroides
5b Margin of opercular membrane minutely serrated;
curved LL scales 61-71; straight LL with 4-10
scales anteriorly ......................................................... D. tabl
Redtail scad
D. tab!
210.25 Decapterus kurroides
Bleeker, 1855
Rooistert -skad
Decapterus kurroides Bleeker, 1855: 420 (Amboina).
D VIII + 1,28-29+ 1; A II + 1,22-25+ 1; LL (curved) 47-55 scales and 0-2
scutes, LL (straight) no scales and 31-36 scutes, LL (total) 80-86; GR
(10-12)+(30-33). Upper jaw with a narrow band of minute teeth
anteriorly. Margin of opercular membrane smooth.
Bluish green above, silvery white below; C bright red and
D lobe dark distally sometimes with pale tip; small black
210.25 Decapterus kurroides: 24 cm FL.
650
opercular spot. Attains 45 cm. A schooling species taken by
trawl in 100 - 300 m, but usually below 150 m. Not yet
reported from our area, but almost certainly present.
Known from Kenya, Tanzania and Reunion; also Japan,
Indonesia, Philippines and Australia.
210.26 Decapterus macarel/us
(Cuvier, 1833)
Mackerel scad
Makriel-skad
Caranx macarellus Cuvier, in Cuv. & Val., 1833: 40 (Martinique).
Caranx pinnulatus Eydoux & Souleyet, 1850: 163, PI. 3, Fig. 1 (Hawaiian
Ids. ).
D VIII + 1,31-36+ 1; A II + 1,27-30'+ 1; LL (curved) 58-75 scales and no
scutes, LL (straight) 14-29 scales and 24-40 scutes, LL (total) 110-138; GR
(10-13)+(34-38). Rear end of upper jaw moderately rounded and slanted
anteroventrally. Upper jaw without teeth. Interorbital scales usually
extending to above front margin of pupil.
Bluish green above, silvery below; C yellow-green and D
lobe sometimes dark distally; small black opercular spot.
Attains 32 cm. A schooling species, occurring mostly in
open water and common in insular habitats; sometimes at
surface but usually in 40 - 200 m. Knysna northward; a circum tropical species.
210.26 Decapterus macarelfus: 19.5 cm FL; gill chamber to show two small
papillae on cleithrum.
210.27 Decapterus macrosoma
Bleeker, 1851
Slender scad
Siank skad
Decapterus macrosoma Bleeker, 1851: 358 (Djakarta). Decapterus
lajang (non Bleeker): Smith, SFSA No. 532*; Smith & Smith, 1963: 127*.
D VIII + I ,33-38+ 1; A II + I ,27-30+ 1; LL (curved) 58-72 scales and no
scutes, LL(straight) 14-29 scales and 24-40 scutes, LL (total) 110-126; GR
(10-12)+(34-38). Rear end of upper jaw concave above, rounded and
produced below. Upper jaw without teeth. Interorbital scales not extending forward beyond rear margin of pupil.