International Journal of Aquaculture, 2015, Vol.5, No.5 1
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9
Measurements are in %SL:
Body Depth 22.5 to 35.3;
Head length 24 to 30.6; head width 11.9 to 15; upper
snout length 9.8 to 12.8; lower snout length 11.5 to
13.8; eye diameter 8.5 to 10.5; inter-orbital width 10.3
to 13.1; post-orbital length 13.2 to 17; dorsal-to-
adipose fin 26.1 to 32.4; pre-dorsal length 49 to 69.4;
pre-ventral length 50.7 to 54.5; caudal peduncle length
10.9 to 14.5; caudal peduncle depth 10.5 to 12.6.
Measurements are in %HL:
Head width 43.6 to 56.4;
upper snout length 36.3 to 43; lower snout length 39.6
to 49; eye diameter 29.2 to 41.5; inter-orbital width
39.3 to 47.7; post-orbital length 54.2 to 61.6.
Lateral line scales 51-65; Dorsal fin rays 10; pectoral
fin 13-15; ventral fin 8-9; anal fin 12 - 13; gill rakers
13-15; teeth in upper jaw 12-14; teeth in lower jaw 10
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13.
Hydrocynus forskali
(Cuvier, 1819)
Synonyms:
Salmo dentex
Forskal, 1775
Characinus dentex
Geoffroy, 1809
Hydrocyon forskalii
Cuvier, 1819
Description:
General body darker and elongated, 203
to 303 mm standard length, covered by cycloid scales
and each scale marked by a dark spot forming parallel
bands visible above the lateral line, and a very small
adipose. Position of dorsal fin is directly below or
slightly back the insertion of ventral fin. Eye diameter
77% of inter-orbital width. Anterior part of anal fin
and lower caudal-fin lobe bright red, the other fins
uniformly.
Measurements are in %SL:
Body Depth 20.2 to 29;
Head length 22.2 to 31.2; head width 10.4 to 16; upper
snout length 8.9 to 13.8; lower snout length 9.3 to 15;
eye diameter 6.8 to 11.5; inter-orbital width 9.8 to
14.7; post-orbital length 13.2 to 19.5; dorsal - to -
adipose fin 19.8 to 33.7; pre-dorsal length 43.7 to 68.6;
pre-ventral length 39.9 to 64.6; caudal peduncle length
10.8 to 18.6; caudal peduncle depth 9.8 to 15.6.
Measurements are in %HL:
Head width 43.9 to 53;
upper snout length 35.2 to 56.1; lower snout length 35.7
to 60.1; eye diameter 30.6 to 39.4; inter-orbital width
39.6 to 47; post-orbital length 54.6 to 62.3. Lateral line
scales 48 - 62; Dorsal fin rays 9 - 10; pectoral fin 12-14;
ventral fin 9; anal fin 12-14; gill rakers 13-15; teeth in
upper jaw 12-14; teeth in lower jaw 12.
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