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Neotrygon yakkoei
Hata & Motomura, 2024
Classification: Elasmobranchii Myliobatiformes Dasyatidae
Reference of the original description
Neotrygon yakkoei, a new bluespotted maskray (Dasyatidae) from Japan. Ichthyological Research, in press
Neotrygon yakkoei, a new bluespotted maskray (Dasyatidae) from Japan. Ichthyological Research, in press
Types
Neotrygon yakkoei
Holotype: KAUM: I. 54097; Paratype: FRMN: 13945; KAUM: I. 170608; KAUM: I. 140890; KAUM: I. 14745; KAUM: I. 28018; KAUM: I. 28772; KAUM: I. 38578; KAUM: I. 145752; KAUM: I. 167928; KAUM: I. 186741; KAUM: I. 96575; KAUM: I. 120718; KAUM: I. 54079; KAUM: I. 121010; KAUM: I. 87599; KAUM: I. 87600; KAUM: I. 102564; KAUM: I. 66176; KAUM: I. 54957; KAUM: I. 54958; KAUM: I. 55347; KAUM: I. 101819; KAUM: I. 101820; KAUM: I. 87579; KAUM: I. 120466; KAUM: I. 116618; KAUM: I. 167810; KAUM: I. 166456; KAUM: I. 63946; KPM: NI 30514; NSMT: P 95314; URM: P 2948; URM: P 17227; URM: P 3835;
Neotrygon yakkoei
Holotype: KAUM: I. 54097; Paratype: FRMN: 13945; KAUM: I. 170608; KAUM: I. 140890; KAUM: I. 14745; KAUM: I. 28018; KAUM: I. 28772; KAUM: I. 38578; KAUM: I. 145752; KAUM: I. 167928; KAUM: I. 186741; KAUM: I. 96575; KAUM: I. 120718; KAUM: I. 54079; KAUM: I. 121010; KAUM: I. 87599; KAUM: I. 87600; KAUM: I. 102564; KAUM: I. 66176; KAUM: I. 54957; KAUM: I. 54958; KAUM: I. 55347; KAUM: I. 101819; KAUM: I. 101820; KAUM: I. 87579; KAUM: I. 120466; KAUM: I. 116618; KAUM: I. 167810; KAUM: I. 166456; KAUM: I. 63946; KPM: NI 30514; NSMT: P 95314; URM: P 2948; URM: P 17227; URM: P 3835;
Images of types
Description :
Citation: Neotrygon yakkoei Hata & Motomura, 2024: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 11/2024
Please send your images of "Neotrygon yakkoei" to info@shark-references.com
Neotrygon yakkoei Hata & Motomura, 2024, holotype, KAUM–I. 54097, 333.9 mm DW, Tanega-shima Island, Kagoshima, Japan © Hata & Motomura, 2024
Neotrygon yakkoei Hata & Motomura, 2024, holotype, KAUM–I. 54097, 333.9 mm DW, Tanega-shima Island, Kagoshima, Japan © Hata & Motomura, 2024
Common names
Japanese Bluespotted Maskray
Japanese Bluespotted Maskray
Short Description
Original diagnosis of Hata & Motomura, 2024 [33274]: A species of Neotrygon with the following combination of characters: greenish brown body in fresh with single dark mask-like marking between eyes (often indistinct); fewer spots (mean 20.4); small pale blue spots (in fresh) surrounded by dark brown outer rings [1.2–3.4% DW (2.6% DW)]; longer head length (35.9–43.4% DW; mean 39.1% DW).
Original diagnosis of Hata & Motomura, 2024 [33274]: A species of Neotrygon with the following combination of characters: greenish brown body in fresh with single dark mask-like marking between eyes (often indistinct); fewer spots (mean 20.4); small pale blue spots (in fresh) surrounded by dark brown outer rings [1.2–3.4% DW (2.6% DW)]; longer head length (35.9–43.4% DW; mean 39.1% DW).
Distribution
Japan Sea coast and Pacifc coast of Hokkaido, Wakasa Bay, the Izu Islands, the Ogasawara Islands, Pacifc Ocean from Sagami Bay to the southern coast of Kyushu, the Osumi Islands, the Amami Islands, the Okinawa Islands, and the Yaeyama Islands [33274]
Japan Sea coast and Pacifc coast of Hokkaido, Wakasa Bay, the Izu Islands, the Ogasawara Islands, Pacifc Ocean from Sagami Bay to the southern coast of Kyushu, the Osumi Islands, the Amami Islands, the Okinawa Islands, and the Yaeyama Islands [33274]
Dentition
rows of teeth in upper jaw less than 33, lower jaw less than 39; the number of upper and lower teeth difered from 3–6; upper jaw with rounded teeth (adult male paratypes have sharply pointed teeth); lower jaw with rounded teeth in anterior portion of mouth, slightly more pointed toward posterior portion (adult male paratypes have sharply pointed teeth throughout); [33274]
rows of teeth in upper jaw less than 33, lower jaw less than 39; the number of upper and lower teeth difered from 3–6; upper jaw with rounded teeth (adult male paratypes have sharply pointed teeth); lower jaw with rounded teeth in anterior portion of mouth, slightly more pointed toward posterior portion (adult male paratypes have sharply pointed teeth throughout); [33274]
Remarks
shark-references Species-ID=17429;
shark-references Species-ID=17429;
