Rhynchobatus mononoke, Japanese wedgefish

Rhynchobatus mononoke Koeda, Itou, Yamada & Motomura, 2020

Japanese wedgefish
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Image of Rhynchobatus mononoke (Japanese wedgefish)
No image available for this species;
drawing shows typical species in Rhinidae.

Clasificación / Nombres Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

Elasmobranquios (tiburones y rayas) (sharks and rays) > Rhinopristiformes (Shovelnose rays) > Rhinidae (Wedgefishes)
Etymology: Rhynchobatus: Greek, rhingchos = snout + Greek, batis, -idos = a sting ray (Raja sp.) (Ref. 45335)mononoke: Name 'mononoke' means 'specter' in Japanese, due to the ventral surface of specimens appearing like a traditional Japanese specter, wearing a triangular white hat (crown) on its forehead; noun in apposition.

Taxonomic Remarks
Published online.

Entorno: milieu / zona climática / rango de profundidad / gama de distribución Ecología

marino pelagic-neritic; rango de profundidad 15 - 136 m (Ref. 123186). Subtropical

Distribución Territorios | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Mapa de puntos | Introducciones | Faunafri

Northwest Pacific: southern Japan.

Tamaño / Peso / Edad

Madurez: Lm ?  range ? - ? cm
Max length : 130 cm TL macho / no sexado; (Ref. 123186); 200.0 cm TL (female)

Descripción breve Claves de identificación | Morfología | Morfometría

This species is distinguished by the following set of characters: snout obtusely wedge shaped, angle ca. 52-57°; preoral length 17.4-17.9% TL, prespiracular length 19.3-19.5%; interdorsal space 16.7-17.9%; total pectoral-fn radials 54-56; total free vertebral centra 136-144; tooth rows on upper jaw ca. 54-66; no spines on snout; outer fold on posterior margin of spiracle is more pronounced than inner fold; pre-first dorsal-fin length 46.4-48.6%; apex of dorsal fins bluntly rounded; origin of first dorsal fn about level with the pelvic-fin origin; middle of pectoral disc with a spiracle-sized black blotch followed by a single white spot (rarely absent) posterodorsally; distal region of pectoral disc to mid-dorsal area without distinct white spots; a single blotch below the eye is usually absent; anterior half of undersurface covered with a rounded black blotch; near the snout tip, a pair of small distinct black spots (Ref. 123186).
Cross section: flattened.

Biología     Glosario (por ej. epibenthic)

This species is currently known only from nearshore to offshore waters and have been collected by set net from 15-35 m, but was also reported to have been taken at 135 m by bottom trawl. Based on photos of landed individuals, this species probably attains close to 3 m TL. The captive female individual held for at least 15 years in the Kagoshima City Aquarium reached to 2 m TL. This wedgefish is occasionally landed at fish markets in Kagoshima Prefecture and used for culinary purpose. Reported catches of the species were very rare in the East China Sea and is apparently restricted distribution and increasing rarity indicate that the species should immediately be included in the IUCN Red List CR “Critically Endangered” category, together with other congeners (Ref. 123186).

Ciclo vital y comportamiento de apareamiento Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

Referencia principal Suba sus referencias | Referencias | Coordinador | Colaboradores

Koeda, K., M. Itou, M. Yamada and H. Motomura, 2020. Rhynchobatus mononoke, a new species of wedgefish (Rhinopristiformes: Rhinidae) from Japan, with comments on Rhynchobatus laevis (Bloch and Schneider 1801). Ichthyol. Res. 68:223-238. (Ref. 123186)

Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))

  Critically Endangered (CR) (A2bd); Date assessed: 16 July 2023

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Amenaza para el ser humano

  Harmless





Usos humanos

FAO - Publication: search | FishSource |

Más información

Ecología Trófica
Alimentos (presas)
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consumo de alimento
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heritabilidad
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Relacionados con el ser humano
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Sellos, monedas, varios
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Fuentes de Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Género, Especie | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Árbol de la vida | Wikipedia: Go, búsqueda | World Records Freshwater Fishing | Zoobank | Expediente Zoológico

Estimaciones basadas en modelos

Índice de diversidad filogenética (Referencia 82804):  PD50 = 0.5024   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00166 - 0.00830), b=3.11 (2.91 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Nivel trófico (Referencia 69278):  3.6   ±0.6 se; based on size and trophs of closest relatives
Vulnerabilidad pesquera (Ref. 59153):  Very high vulnerability (90 of 100). 🛈