Home|Search|Identify|Taxonomic tree|Quiz|About this site|Feedback
Developed by ETI BioInformatics
Characteristics, distribution and ecology
Taxonomische classification
Synonyms and common names
Literature references
Images, audio and video
Links to other Web sites

Author: Bleeker, 1858

Field Marks:
An angelshark with simple, spatulate nasal barbels and weakly fringed or smooth anterior nasal flaps, dermal flaps on sides of head without angular lobes, large eyes with interspace between them and spiracles less than 1.5 times eye diameter, fairly broad and posteriorly rounded pectoral fins, and no ocelli on body.

Diagnostic Features:
Trunk moderately narrow. Anterior nasal barbels simple and with a narrow, spatulate tip; posterior margin of anterior nasal flaps between nasal barbels and tips weakly fringed or smooth; distance from eye to spiracle less than 1.5 times eye diameter; dermal folds on sides of head without triangular lobes. Pectoral fins rather broad and high, with rounded free rear tips. Moderately large spines present on midline of back and tail from head to dorsal fins and between the fin bases, and on snout and above eyes. Colour: no ocelli on body.

Geographical Distribution:
Western North Pacific: Southeastern Sea of Japan to Yellow Sea, Japan, the Koreas, northern China, ?the Philippines.

Habitat and Biology:
A little-known angelshark of temperate western North Pacific waters, found on or near the bottom.

Size:
Maximum total length to 2 m long.

Interest to Fisheries:
Details of fisheries off China, Japan and the Republic of Korea sketchy but apparently taken in large numbers off China, and used for human consumption and for preparation of shagreen for polishing and finishing woodworks.

Type material:
Holotype: Rijksmuseum van Natuurlijke Historie, Leiden, RMNH 7416, 525 mm male. Type Locality: Nagasaki, Japan.

Japanese angelshark (Squatina japonica)