Icosteus aenigmaticus

Also known as ragfish

The ragfish (Icosteus aenigmaticus) is a ray-finned fish of the northern Pacific Ocean; although classified as a bony fish, its skeleton is mostly cartilage, and the larvae have pelvic fins that disappear as they mature. It is the sole member of the family Icosteidae within the order Scombriformes.

Species

ragfish

SPECIES

KingdomAnimalia
PhylumChordata
ClassTeleostei
OrderPerciformes
FamilyIcosteidae

Habitatmarine

Observations recorded3,372

襤魚（学名：Icosteus aenigmaticus）是貧骨魚科（Icosteidae）及襤魚屬的唯一一种，為輻鰭魚綱鲭形目的其中一科，传统上则被归类于鱸形目貧骨魚亞目之中。

via GBIF

Museum specimens

Specimen records: 501
With media: 19
Family: Icosteidae
Collections: UWFC
Recorded in: United States

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The ragfish body is scaleless and limp, because of its cartilaginous skeleton and its flabby muscles. None of the fins have any spines. The dorsal and anal fins extend much of the length of the body, while the pelvic fins are absent. The coloration is generally a dark brown, and maximum known length is 2 m.

Excerpted from Wikipedia’s “Icosteus aenigmaticus” article, available under the CC BY-SA 4.0 licence.