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Some individuals are marked with very thin wavy yellow lines on the flank. A feature differentiating this species from similar sympatric congeners is the vivid yellow iris. The fins are reddish although the anal and dorsal fins are tinted with yellow. The caudal fin has a dark margin and the pectoral fins are light yellow pectoral fins.
Ranging in color from dark gray to dark brown, deep-sea species have large heads that bear enormous, crescent-shaped mouths full of long, fang-like teeth angled inward for efficient prey-grabbing. Their length can vary from 2–18 cm (1–7 in), with a few types getting as large as 100 cm (39 in), [ 15 ] but this variation is largely due to ...
The teeth are incisor-like with lateral cusps and are arranged in a single row in the jaws. [9] The body is covered in small embedded scales, [11] except of the midline of the underside. [10] The colour is variable and it usually shows some darks spots and yellow wavy lines along the sides. [9]
The dorsal fin has 10-12 spines and 12 soft rays while the anal fin contains 3 spines and 8 soft rays. [2] The rear of the dorsal fin and the anal fin have an angular profile, the pectoral fins have 16-17 rays and the caudal fin is truncate or weakly emarginate. [6] This fish attains a maximum total length of 35 cm (14 in). [2]
White and black striped with yellow caudal fin and a dorsal fin that forms a long, thin banner. 21 cm (8.3 in) Longnose butterflyfish: Forcipiger flavissimus: No: From the pectoral fins forward, black above the eye and silver below, with an exceptionally mouth. Past the pectoral fins, bright yellow with an eyespot on the anal fin. 22 cm (8.7 in)
The Giganturidae are slender, slightly tapered fish with large heads dominated by large, forward-pointing, telescoping eyes with large lenses. Their heads end in short, pointed snouts. The highly extensile mouth is lined with sharp, slightly recurved and depressible teeth and it extends well past the eyes.
There is a series of short wavy oblique blue lines on the sides flanks above the lateral line which are created by spots on the scales, there may be yellow streaks below the lateral line. The anal fin is pinkish red; the caudal fin is red with a black margin, the dorsal fin is red with a yellow margin and the pectoral fins are red. [8]
The fish range in size from about 3.83 inches to about 4.86 inches long, the study said. ... The creatures are yellow with scattered black blotches and semi-translucent fins. ... conical teeth ...