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TABLE 2 in A new Coelorinchus from the western Indian Ocean with comments on the C. tokiensis group of species (Teleostei: Gadiformes: Macrouridae)

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TABLE 2. Most notable differences between the species of the Coelorinchus flabellispinis group. CharacterC. zinjianus sp. n.C. quadricristatusC. flabellispinisC. trunoviSnoutLonger, 2.0–2.2 times in HL, strongly attenuatedLonger, 2.0–2.2 times in HL, usually clearly attenuatedShorter, 2.4–2.8 times in HL, less attenuatedShorter, 2.4–2.7 times in HL, less attenuatedNasal fossaCompletely scaled (Fig. 5A)Incompletely scaled (Fig. 5B, C)Incompletely scaled (Fig. 5D)Incompletely scaled (Fig. 5E)Posterior nostrilModerateModerate to largeLargeModerateLipsThick, papilloseThin, smooth to slightly papilloseThin, nearly smoothThin, nearly smoothOutermost premaxillary teethModerately enlarged (not caniniform), almost completely hidden by upper lipModerately enlarged in juveniles to caniniform in large adults, mainly exposed at all sizesWeakly to moderately enlarged, mainly exposed at all sizesModerately enlarged at HL up to 80 mm (strongly caniniform at HL> 100 mm), mainly exposed at all sizesPreopercular lobe & subopercular flapElongate (Fig. 3A)Elongate (Fig. 3B)Short (Fig. 3C)Elongate (Fig. 3D)External light organModerately large, 5.9–9.3 % HL (Fig. 2D)Very small to absent, 0.0–2.1 % HL at 49–61 mm HL (Fig. 7B)Very small to absent, 0.0–3.5 % HL (Fig. 7C)Very large, 15.0–21.2 % HL (Fig. 7D)Spinule row(s) on scales between the eyes and occipital ridges3 or more, diverging (Fig. 6A)Single keel-like at 49–61 mm HL (Fig. 6B, C), up to 3 weakly divergent at 170–179 mm HL (Fig. 6D)3 or more, diverging (Fig. 6E)Single keel-like (Fig. 6F)Spinule rows on flank scalesWeakly diverging to parallel, 6–9 in number at 52–74 mm HL (Fig. 4A)Strongly diverging, 3 or 4 at 49–61 mm HL (Fig. 4B)Weakly to moderately diverging, 3–10 (mainly 5 or more) in number at 41–82 mm HL (Fig. 4C)Moderately to strongly diverging, 3–8 (mainly fewer than 6) in number at 41–80 mm HL (Fig. 4D)Spinules in rows on flank scalesSmall, narrow-based, strongly depressed, not considerably increased in sizes caudad (Fig. 4A)Larger, narrow-based, moderately raised, considerably increased in sizes caudad (Fig. 4B)Larger, narrow-based, moderately raised, considerably increased in sizes caudad (Fig. 4C)Larger, broad-based, raised, not increased to gradually increased in sizes caudad (Fig. 4D)Color patternBanded at least up to 104 mm HL (larger specimens unknown)Banded at all sizesUniform at all sizesUniform at all sizesFirst dorsal finBlackish at base, whitish distallyBlackish at base, whitish distallyVariably speckled by chromatophores from nearly pale (by naked eye) to distinctly infuscated, often darker distallyVariably infuscated, paler near base, sometimes blackish distallyMouth pigmentationPaleBlackishPalePale
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2025-04-05
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