Catalog of Fishes
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Rhynchobatus mononoke
Koeda, Itou, Yamada & Motomura, 2020
Classification: Elasmobranchii Rhinopristiformes Rhinidae
Reference of the original description
Rhynchobatus mononoke, a new species of wedgefish (Rhinopristiformes: Rhinidae) from Japan, with comments on Rhynchobatus laevis (Bloch and Schneider 1801). Ichthyological Research, 68, 223–238
Rhynchobatus mononoke, a new species of wedgefish (Rhinopristiformes: Rhinidae) from Japan, with comments on Rhynchobatus laevis (Bloch and Schneider 1801). Ichthyological Research, 68, 223–238
Types
Rhynchobatus mononoke
Rhynchobatus mononoke
Description :
Citation: Rhynchobatus mononoke Koeda, Itou, Yamada & Motomura, 2020: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 10/2025
Common names
Japanese Wedgefish, Mononoke-tongarisakatazame (jap)
Japanese Wedgefish, Mononoke-tongarisakatazame (jap)
Short Description
Diagnosis after KOEDA, ITOU, YAMADA & MOTOMURA, 2020 [28927]: A large-sized species of Rhynchobatus with the following combination 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-fin radials 54–56; total free vertebral centra 136–144; tooth rows on upper jaw ca. 54–66; spines absent on snout; outer fold on posterior margin of spiracle more pronounced than inner fold; pre-first dorsalfin length 46.4–48.6%; apex of dorsal fins bluntly rounded; origin of first dorsal fin about level with pelvic-fin origin; a spiracle-sized black blotch followed by a single white spot (rarely absent) posterodorsally, on middle of pectoral disc; distal region of pectoral disc to middorsal area lacking distinct white spots; a single blotch below eye usually absent; a rounded black blotch covering anterior half of undersurface of snout; a pair of small distinct black spots near snout tip.
Diagnosis after KOEDA, ITOU, YAMADA & MOTOMURA, 2020 [28927]: A large-sized species of Rhynchobatus with the following combination 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-fin radials 54–56; total free vertebral centra 136–144; tooth rows on upper jaw ca. 54–66; spines absent on snout; outer fold on posterior margin of spiracle more pronounced than inner fold; pre-first dorsalfin length 46.4–48.6%; apex of dorsal fins bluntly rounded; origin of first dorsal fin about level with pelvic-fin origin; a spiracle-sized black blotch followed by a single white spot (rarely absent) posterodorsally, on middle of pectoral disc; distal region of pectoral disc to middorsal area lacking distinct white spots; a single blotch below eye usually absent; a rounded black blotch covering anterior half of undersurface of snout; a pair of small distinct black spots near snout tip.
Distribution
only from nearshore to offshore waters off the western coast of Kyushu south to Kasasa, Satsuma Peninsula, north to Nagasaki, west to the northern East China Sea, and off Tateyama, Boso Peninsula [28927] Source: www.gbif.org
only from nearshore to offshore waters off the western coast of Kyushu south to Kasasa, Satsuma Peninsula, north to Nagasaki, west to the northern East China Sea, and off Tateyama, Boso Peninsula [28927] Source: www.gbif.org
Remarks
shark-references Species-ID=16023; CITES: (see: Protected Species for more details) Convention on International Trade in Endangered Speciesof Wild Fauna and Flora annex: II; Council Regulation 2017/160 annex: B
shark-references Species-ID=16023; CITES: (see: Protected Species for more details) Convention on International Trade in Endangered Speciesof Wild Fauna and Flora annex: II; Council Regulation 2017/160 annex: B
