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Pleuronectiformes (Flatfishes) >
Cynoglossidae (Tonguefishes) > Symphurinae
Etymology: Symphurus: Greek, syn, symphysis = grown together + Greek, oura = tail (Ref. 45335); oxyrhynchus: Name derived from the Greek, ‘oxy’ meaning sharp and ‘rhynchus’ meaning snout, referring to the relatively sharp, pointed snout of this species compared with those of congeners.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien demersaal; diepte 718 - 852 m (Ref. 127475). Deep-water
Northwest Pacific: Japan and Taiwan.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 10.1 cm mannelijk / geslacht onbekend; (Ref. 127475)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
This new species is distinguished from congeners by the following combination of characters: predominant 1–2–2–1–2 pattern of interdigitation of dorsal pterygiophores and neural spines, 14 caudal-fin rays, 93 dorsal-fin rays, 80–81 anal-fin rays, 9 abdominal and 52 total vertebrae, 5 hypurals, small eye (7.5–8.0 % HL) with relatively large pupil (78–85% ED), moderately large scales (87–89 scales in longitudinal series, 31 scales in transverse row), snout square and projecting anteriorly, ocular side uniformly yellow to dark brown with intense pigmentation on body areas overlying dorsal- and anal-fin pterygiophores, outer surface of opercle on both sides bluish black, general background coloration shared the same coloration in blind side, including more intense on body areas overlying dorsal and anal pterygiophores (Ref. 127475).
Only two specimens were collected from the deep waters, but It is expected to have wider distributions, horizontally and vertically. Stomach contents include small crustaceans, snails and bivalves. Little else is known about the biology of this species (Ref. 127475).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Lee, M.-Y., 2022. A new species of deep-water tonguefish (Pleuronectiformes: Cynoglossidae: Symphurus from the western North Pacific Ocean. Zootaxa 5189(1):233-242. (Ref. 127475)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-1)
Gevaar voor de mens
Harmless
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00507 - 0.02267), b=3.11 (2.92 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
