Classification / Names
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Ovalentaria/misc (Various families in series Ovalentaria) >
Opistognathidae (Jawfishes)
Etymology: Opistognathus: Greek, opisthe = behind + Greek, gnathos = jaw (Ref. 45335); to the very elongate upper jaw of the type species of the genus, Opistognathus nigromarginatus (Ref. 128653); biporus: Name from Latin 'bi' meaning two and 'porus' for hole, referring to the bipored preopercular pore positions in this species.
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
Θαλασσινό(ά) βενθικό(ς); εύρος βάθους 70 - 126 m (Ref. 128653). Tropical
Western Pacific: Loyalty Islands (New Caledonia).
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 6.4 cm SL (female)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Ραχιαίες άκανθες (συνολικά) : 11; Μαλακές ραχιαίες ακτίνες (συνολικά) : 11; Εδρικές άκανθες: 2; Μαλακές εδρικές ακτίνες: 10; Σπόνδυλοι: 26. This species is distinguished by the following characters: with a rigid upper jaw lacking flexible lamina posteriorly, extending about 0.6 eye diameters behind posterior margin of orbit; infraorbitals are relatively slender and tubular, third infraorbital with short posterolateral projecting arm ending with large sensory canal opening, no suborbital shelf; D XI,11; A II,10; vertebrae 10+16. Colouration: tips of dorsal-fin spines with conspicuous pale tabs; dorsum with a row of 5 dark blotches extending distinctly onto the dorsal fin; nape with a dark blotch slightly in front of dorsal-fin origin; last blotch on dorsal fin is distinctly narrower than anterior blotches; head with small dusky spots or blotches (Ref. 128653).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
Smith-Vaniz, W.F., 2023. Review of Indo-West Pacific jawfishes (Opistognathus: Opistognathidae), with descriptions of 18 new species. Zootaxa 5252(1):1-180. (Ref. 128653)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
