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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.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
marino demersal; rango de profundidad 0 - 1 m (Ref. 103856). Tropical
Eastern Pacific: Rapa (Fr. Polynesia).
Tamaño / Peso / Edad
Madurez: Lm ?  range ? - ? cm
Max length : 5.7 cm SL macho / no sexado; (Ref. 103856); 6.6 cm SL (female)
Descripción breve
Claves de identificación | Morfología | Morfometría
Espinas dorsales (total) : 7; Radios blandos dorsales (total) : 12 - 13; Espinas anales: 1; Radios blandos anales: 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).
Body shape (shape guide): elongated; Cross section: compressed.
Specimens were collected over mud and rock substrate at depths between 0-0.5 m (Ref. 103856).
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
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)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Harmless
Usos humanos
Herramientas
Informes especiales
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Fuentes de Internet
Estimaciones basadas en modelos
Índice de diversidad filogenética (Referencia 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00708 (0.00335 - 0.01497), b=3.07 (2.89 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Nivel trófico (Referencia 69278) |
3.5 ±0.5 se; based on size and trophs of closest relatives |
Resiliencia (Referencia 120179) |
Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.). |
Vulnerabilidad pesquera (Ref. 59153) |
Low vulnerability (15 of 100). 🛈 |