Myliobatis tobijei

BLEEKER, 1854


Japanese eagle ray
Classification: Elasmobranchii Myliobatiformes Myliobatidae

Reference of the original description
BLEEKER, P. (1854)
Faunae ichthyologicae japonicae. Species Novae. Natuurkundig Tijdschrift voor Nederlandsch Indië, 6: 395–426

Image of the original description
No image in first description.

Synonyms / new combinations and misspellings
Aetobatis tobijei, Holorhinus tobijei, Mobula tobijei, Myliobatis cornuta, Myliobatis tobijaei, Myliobatis tobije

Types
Myliobatis tobijei
Syntype: RMNH: 7461 (largest of 2);


Description :


Citation: Myliobatis tobijei BLEEKER, 1854: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 06/2017

Please send your images of "Myliobatis tobijei" to info@shark-references.com

Dorsal view of the holotype of Myliobatis tobijei (RMNH 7461 [largest of 2], juvenile female 236 mm DW, preserved) from Nagasaki, Japan. In: WHITE, W.T. & KAWAUCHI, J. & CORRIGAN, S. & ROCHEL, E. & NAYLOR, G.J.P. (2015): Redescription of the eagle rays Myliobatis hamlyni Ogilby, 1911 and M. tobijei Bleeker, 1854 (Myliobatiformes: Myliobatidae) from the East Indo-West Pacific. Zootaxa, 3948 (3): 521–548
Common names
eng Cowhead eagle ray, eng Eagle ray, eng Japanese eagle ray, eng Kite ray

Short Description
Diagnose after WHITE, KAWAUCHI, CORRIGAN, ROCHEL & NAYLOR, [22508]: A small Myliobatis (attaining about 665 mm DW) with the following combination of characters: dorsal surfaces yellowish brown, usually with variable, irregular dark blotches; tail with a very weak ventral skin fold; stinging spine(s) relatively long (longest spine 10.3–18.6% DW); interorbital space shallowly concave in adult males; anterior margins of pectoral fins moderately convex; cranial fontanelle (visible in dorsal view without dissection) relatively narrow with mostly straight lateral margins; claspers of adult males 6.6–10.2% DW; predorsal length 66.6–78.8% DW; pectoral-fin radials 79–85 (excluding rostral propterygial radials anterior of eyes); total vertebral centra (including synarcual) 115–124; males mature by 429 mm DW.

Distribution
Found in the western North Pacific (Sea of Okhotsk; widely distributed throughout mostly southern Japan; in South Korea, recorded from off Busan and Jeju Island) [22508] Source: www.gbif.org

Human uses
fisheries: minor commercial; price category: medium; price reliability: very questionable: based on ex-vessel price for species in this family

Biology
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures [733]. Found from the intertidal to the uppermost continental slope. Lives on the sandy areas in the rocky regions of the Japanese and the East China seas [17641]. Also inhabits coral reefs (Ref. 58534). A carnivore feeding on benthic animals [17641].

Size / Weight / Age
1257 mm TL max, 245–619 (males) and 214–656 mm (females) DW [22508]

Habitat
demersal; marine; occurs mostly in shallow coastal waters to depths of at least 60 m [22508]

Dentition
teeth in 7 rows in each jaw, with a broad median row flanked by three smaller rows on each side [22508]

Parasites (arranged by Jürgen Pollerspöck)
Cestoda
Nematoda
  • Mawsonascaris myliobatum (YIN & ZHANG, 1983) [15762]
  • Raphidascaroides myliobatum YIN & ZHANG, 1983 [21235]