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Rajidae

File:Amblyraja_hyperborea1.jpg · Wikimedia Commons · See Wikimedia Commons

EntityQ837104· pop 46· linked from 413 articles

Also known as skate, skates, rajids, rajid

family of fishes

OverviewAI-generated

Rajidae is a family of skates within the order Rajiformes. It belongs to the class Elasmobranchii, phylum Chordata, and kingdom Animalia. The taxon was established by de Blainville in 1816 and holds an accepted status in biological classification. Common names for the group include "skatefamilien" and "pravi skati."

Members of this family inhabit marine and brackish environments. Occurrence records are associated with the United States, Mexico, Canada, Israel, and Antarctica. These records are held by institutions such as FHSM, ICML-UNAM, UCMP, NMMNHS, and UWFC. The family has a total of 722,482 occurrence records, 561 specific records, and 9 media items.

Synthesized by Vinony from 33 facts across 7 sources: Wikidata, GBIF, PubMed, Gbif Occ, WoRMS, iDigBio, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.

Species

skates

FAMILY

  1. KingdomAnimalia
  2. PhylumChordata
  3. ClassElasmobranchii
  4. OrderRajiformes
  5. FamilyRajidae
Habitatmarine, brackish
Observations recorded722,482

鳐科(學名Rajidae)是鳐形目的典型科,本科鱼身体扁平,胸鳍宽大,腹鳍有一个明显的缺刻,几乎将腹鳍分为两叶,两个背鳍非常小,紧靠尾部,尾细小,通常无尾鳍,如有也没有鳍条支持。 鳐科鱼生活在海底,以甲壳类动物和小鱼为食,是一种经济鱼类,但根據綠色和平,本科有數種魚類遭受過度捕撈的危險。 鳐通常长有扁平的身体,眼睛长在头部上方,便于观测水面上的变化;嘴和鳃裂长在身体正方,便于取食海底的带壳动物。有些鳐鱼长有特别宽大的胸鳍,能像鳐式飞机一样在水面上滑行。鳐鱼的鼻子下侧长有电子感应系统。这种系统连接着鳐鱼的感觉神经细胞。多数水生动物在游动时都会产生电子信号,鳐鱼就用自身的电子感应系统搜索食物的信号,并进行捕猎。

via GBIF

Museum specimens

Specimen records
561
With media
9
Family
Rajidae
Collections
FHSM, ICML-UNAM, UCMP, NMMNHS, UWFC, SIO
Recorded in
United States, Mexico, Canada, Israel, Antarctica, Australia

Research

2,007 papers

via PubMed

Wikidata facts

Instance of
taxon
Parent taxon
Rajiformes
Image
Bathyraja abyssicola.jpg
Show 6 more facts
Commons category
Rajidae
taxon name
Rajidae
taxon rank
family
MCN code
0302.82.00
taxon common name
pravi skati
Sources (3)

via Wikidata · CC0

~10 min read

Encyclopedic overview

Skates are cartilaginous fish belonging to the family Rajidae in the superorder Batoidea of rays. More than 150 species have been described, in 17 genera. Softnose skates and pygmy skates were previously treated as subfamilies of Rajidae (Arhynchobatinae and Gurgesiellinae), but are now considered as distinct families. Alternatively, the name "skate" is used to refer to the entire order of Rajiformes (families Anacanthobatidae, Arhynchobatidae, Gurgesiellidae and Rajidae).

Members of Rajidae are distinguished by a stiff snout and a rostrum that is not reduced.

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

Gallery (11)