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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).
More on authors: Jordan & Snyder.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina bottenlevande; djupintervall 10 - 30 m (Ref. 128653). Subtropical
Indo-West Pacific: India, Japan, Hong Kong, Vietnam, and the Philippines.
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 11.0 cm TL hane/ej könsbestämd; (Ref. 559)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 11; Mjukstrålar i ryggfenan (totalt) : 10 - 12; Taggstrålar i analfenan: 2; Mjukstrålar i analfenan: 10 - 11; Ryggkotor: 26. This species is distinguished by the following characters: with a rigid upper jaw lacking flexible lamina posteriorly, extending about 1.0 eye diameter behind posterior margin of orbit; infraorbitals are moderately tubular, with large openings for sensory canals, the third infraorbital largest with very short posterolateral projecting arm ending with sensory canal opening, no suborbital shelf; D XI,10-12; A II,10-11; vertebrae 10 + 16; scale rows in horizontal series about 41-47; nape naked; outer premaxillary teeth are relatively straight with distinctly blunt tips. Colouration: soft dorsal and anal fins each with two pale stripes; caudal fin with one pale band; pelvic fin bicolored, dark except for the pale unbranched outer two rays and interradial membrane (Ref. 128653).
A rare species. Mouthbrooders (Ref. 240).
Life cycle and mating behavior
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
Employ mouthbrooding to care for their young (Ref. 240).
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)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.4 ±0.6 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
