Platyrhina hyugaensis
Iwatsuki, Miyamoto & Nakaya, 2011
Hyuga fanray
Classification: Elasmobranchii Rhinopristiformes Platyrhinidae
Reference of the original description
A review of the genus Platyrhina (Chondrichthys: Platyrhinidae) from the northwestern Pacific, with descriptions of two new species. Zootaxa, 2738, 26–40
A review of the genus Platyrhina (Chondrichthys: Platyrhinidae) from the northwestern Pacific, with descriptions of two new species. Zootaxa, 2738, 26–40
Image of the original description
Image in copyright.
Image in copyright.
Types
Platyrhina hyugaensis
Holotype: MUFS: 21609; Paratype: FRLM: 29894; FRLM: 1711; MUFS: 26936; MUFS: 23255; MUFS: 23164; MUFS: 7272; MUFS: 5555; MUFS: 3553; MUFS: 3552; MUFS: 3551;
Platyrhina hyugaensis
Holotype: MUFS: 21609; Paratype: FRLM: 29894; FRLM: 1711; MUFS: 26936; MUFS: 23255; MUFS: 23164; MUFS: 7272; MUFS: 5555; MUFS: 3553; MUFS: 3552; MUFS: 3551;
Description :
Citation: Platyrhina hyugaensis Iwatsuki, Miyamoto & Nakaya, 2011: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 12/2024
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Platyrhina hyugaensis Iwatsuki, Miyamoto & Nakaya, 2011: MUFS 23164; paratype, 43.1 TL, female , Japan, Meitsu, Miyazaki © Iwatsuki, Yukio, Department of Marine Biology & Environmental Sciences, Miyazaki, Japan
Platyrhina hyugaensis Iwatsuki, Miyamoto & Nakaya, 2011: MUFS 23164; paratype, 43.1 TL, female , Japan, Meitsu, Miyazaki © Iwatsuki, Yukio, Department of Marine Biology & Environmental Sciences, Miyazaki, Japan
Common names
Hyuga fanray
Hyuga fanray
Short Description
This species is distinguished from its congeners by the following set of characters: a row of thorns (strongly hooked) on mid-dorsum of tail; a pair of thorns on anterior part of scapular region (apparent to touch in smallest specimen; 161 mm TL); thorns on orbital, nape and scapular regions not encircled by light yellow or white pigment; dorsal surface covered with minute dermal denticles of uniform size and shape, no obvious larger dermal denticles (smooth to touch) (Ref. 86259).
This species is distinguished from its congeners by the following set of characters: a row of thorns (strongly hooked) on mid-dorsum of tail; a pair of thorns on anterior part of scapular region (apparent to touch in smallest specimen; 161 mm TL); thorns on orbital, nape and scapular regions not encircled by light yellow or white pigment; dorsal surface covered with minute dermal denticles of uniform size and shape, no obvious larger dermal denticles (smooth to touch) (Ref. 86259).
Distribution
North Pacific: southern Japan.
North Pacific: southern Japan.
Biology
According to local divers in Miyazaki, this species often occurs on very shallow sandy bottoms, at depths as shallow as ca. 1 m, in the summer season off the Nichinan Coast, Miyazaki. It is frequently captured by set net within a depth of ca. 50 m from early spring (March) to autumn (November). It was observed by a local fisherman and a fish merchant (pers.comm.), that this species was not included in almost daily set net catches (depth ca. 8-50 m) from November to March in 2007-2008 in northern Miyazaki (Kadokawa Bay) and southern Miyazaki (Meitsu, Nichinan Coast) which indicate that the species avoids lower sea temperatures in the winter season (Ref. 86259).
According to local divers in Miyazaki, this species often occurs on very shallow sandy bottoms, at depths as shallow as ca. 1 m, in the summer season off the Nichinan Coast, Miyazaki. It is frequently captured by set net within a depth of ca. 50 m from early spring (March) to autumn (November). It was observed by a local fisherman and a fish merchant (pers.comm.), that this species was not included in almost daily set net catches (depth ca. 8-50 m) from November to March in 2007-2008 in northern Miyazaki (Kadokawa Bay) and southern Miyazaki (Meitsu, Nichinan Coast) which indicate that the species avoids lower sea temperatures in the winter season (Ref. 86259).
Size / Weight / Age
Max length : 43.1 cm TL (female)
Max length : 43.1 cm TL (female)
Remarks
shark-references Species-ID=11162;
shark-references Species-ID=11162;