Aetobatus narutobiei

WHITE, FURUMITSU & YAMAGUCHI, 2013



Classification: Elasmobranchii Myliobatiformes Aetobatidae

Reference of the original description
WHITE, W.T. & FURUMITSU, K. & YAMAGUCHI, A. (2013)
A New Species of Eagle Ray Aetobatus narutobiei from the Northwest Pacific: An Example of the Critical Role Taxonomy Plays in Fisheries and Ecological Sciences. PLoS ONE, 8 (12): e83785

Image of the original description

Aetobatus narutobiei WHITE, FURUMITSU & YAMAGUCHI, 2013, CSIRO H 7465-01; paratype, juvenile female (516 mm DW). © White WT, Furumitsu K, Yamaguchi A (2013) A New Species of Eagle Ray Aetobatus narutobiei from the Northwest Pacific: An Example of the Critical Role Taxonomy Plays in Fisheries and Ecological Sciences. PLoS ONE 8(12): e83785



Description :


Citation: Aetobatus narutobiei WHITE, FURUMITSU & YAMAGUCHI, 2013: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 05/2017

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Aetobatus narutobiei WHITE, FURUMITSU & YAMAGUCHI, 2013, FFNU-P-2001; holotype, adult male (831 mm DW) © White WT, Furumitsu K, Yamaguchi A (2013) A New Species of Eagle Ray Aetobatus narutobiei from the Northwest Pacific: An Example of the Critical Role Taxonomy Plays in Fisheries and Ecological Sciences. PLoS ONE 8(12): e83785
Common names
Naru eagle ray

Short Description
Original diagnose after WHITE, FURUMITSU & YAMAGUCHI, 2013 [20089]: A medium to large-sized Aetobatus (attaining 1500 mm DW) with the following combination of characters: dorsal surfaces uniformly greenish grey to brownish, without pale spots or ocelli; head long (ventral head length 27.4–31.9% DW); rostral lobe long to very long (longest in adult males) and narrow, tapering evenly to tip; teeth plates in a single row, those in lower jaw chevron-shaped; width of lower tooth plate about 2.4 times its width and in about 18 series; pectoral-fin radials 100–104 (excluding propterygial radials anterior of eyes); total vertebral centra (including synarcual) 88–90; pelvic-fin radials 1 (with 2–5 fused elements) +17–18; males mature by about 800 mm DW; born at 334–352 mm DW.

Distribution
Most records were from the south-western part of Japan. Records of this species from adjacent regions include: Macao, China [11]; Hong Kong [16]; Korea [19], [25]; and Cat Ba Island in Vietnam [29] [20089]

Size / Weight / Age
Type specimens ranged from 342 to 1210 mm DW. Juvenile males ranged from 353–455 mm DW; subadult male was 759 mm DW; adult males ranged from 803 to 937 mm DW. Females ranged from 342 to 1210 mm DW. [20089];

Habitat
marine; from shallow tidal flats to at least 59 m depth [20089];

Dentition
Teeth in a single row in each jaw, coalesced to form plates (Fig. 5); lower jaw tooth plate length about 2.4 times its width, its width 0.79 (0.70–0.87) mouth width; lower jaw teeth narrow, chevron-shaped, in 18 series (based on dissected specimen FFNU-P-2015); upper tooth plate length about 0.9; upper jaw teeth narrow, mostly transverse but curving posteriorly distally, in 13 series (based on dissected specimen FFNU-P-2015) [20089];

Parasites (arranged by Jürgen Pollerspöck)
Cestoda