Classification / Names
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Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobionellinae
Etymology: Oxyurichthys: Greek, oxys = sharpen + Greek, oura = tail + Greek, ichthys = fish (Ref. 45335); rapa: Named for its type locality, the island of Rapa (French Polynesia); noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
Θαλασσινό(ά) βενθικό(ς); εύρος βάθους 0 - 1 m (Ref. 103856). Tropical
Eastern Pacific: Rapa (Fr. Polynesia).
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 5.7 cm SL αρσενικό/απροσδιόριστο; (Ref. 103856); 6.6 cm SL (female)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Ραχιαίες άκανθες (συνολικά) : 7; Μαλακές ραχιαίες ακτίνες (συνολικά) : 12 - 13; Εδρικές άκανθες: 1; Μαλακές εδρικές ακτίνες: 13. This species is distinguished by the following characters: D2 13 dorsal-fin elements and 14 anal-fin elements; upper jaw with a single row of teeth; fleshy tongue is rounded; upper lip is not constricted at the premaxillary symphysis; presence of a black spot on dorsoposterior surface of eye, without cirrus or cornification; anterior nares possess a dark anteromedial spot; presence of a broad dusky to dark brown area covering gular region beneath preopercle and anterior process of quadrate; dorsum scales without dark spots on posterior margin; mid-side with 4 oval to rounded dusky to brown blotches, interspersed with dusky spots and indistinct oblique bars, the fifth basicaudal blotch rounded to triangular; nape naked, with a low membranous crest; weak ctenoid scales laterally on trunk, reaching anterior to second dorsal-fin origin, scales cycloid anteriorly; naked prepelvic area; lateral scales 60–81 (modally 70); first dorsal-fin spines are elongate with filamentous tips, reaching fourth to eighth second dorsal-fin element when appressed in females, beyond second dorsal-fin, terminus in males; pectoral-fin rays 19-20; pelvic fins are blackish with pale frenum; first dorsal fin is dusky with 3 blackish lines crossing fin, leading edge of first spine black (Ref. 103856).
Specimens were collected over mud and rock substrate at depths between 0-0.5 m (Ref. 103856).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
Pezold, P.L. and H.K. Larson, 2015. A revision of the fish genus Oxyurichthys (Gobioidei: Gobiidae) with descriptions of four new species. Zootaxa 3988(1):1-95. (Ref. 103856)
IUCN Red List Status (Ref. 130435: Version 2024-2)
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 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00338 - 0.01553), b=3.05 (2.87 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Ελαστικότητα (Ref.
120179): Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
