To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

How to transfigure the Wikipedia

Would you like Wikipedia to always look as professional and up-to-date? We have created a browser extension. It will enhance any encyclopedic page you visit with the magic of the WIKI 2 technology.

Try it — you can delete it anytime.

Install in 5 seconds
4,5
Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.
Great Wikipedia has got greater.
.
Leo
Newton
Brights
Milds

Arius (fish)

From Wikipedia, the free encyclopedia

Arius
Temporal range: Campanian–Present
Arius arius
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Ariidae
Subfamily: Ariinae
Genus: Arius
Valenciennes in G. Cuvier & Valenciennes, 1840
Type species
Pimelodus arius
Hamilton, 1822
Species

See text

Synonyms

Arius is a genus of catfishes (order Siluriformes) of the family Ariidae. The genus Arius is distributed in brackish and fresh waters of Eastern Africa and south to Southeast Asia.[1]

Defining the limits so that Arius can form a natural grouping has always been a problem. The genus was never properly defined, and many species previously classified in Arius are now in other genera. Recent authors have recognized this genus as nonmonophyetic, rejecting that the genus is a natural grouping. Two unnamed groups are distinguished by accessory tooth plates, which are either very elongated and bearing molar-like teeth, or are oval shaped or subtriangular and bearing acicular (needle-like) or conic teeth.[1] A. jatius lacks these tooth plates, but has been included in this genus based on its adipose fin and lateral line.[1] The recognition of Arenarius as a junior synonym of Arius is tentative and needs to be further investigated.[1]

Arius species have three pairs of barbels, including the fleshy and cylindrical maxillary barbels and two pairs of mental barbels. The base of the adipose fin is moderately long, about half the length of the base of the anal fin.[1]

Species

Currently, 23 living species are recognized for this genus.[2]

In addition, a fairly extensive fossil record exists, encompassing several species, but mainly represented by otoliths.

References

  1. ^ a b c d e Marceniuk, Alexandre P.; Menezes, Naércio A. (2007). "Systematics of the family Ariidae (Ostariophysi, Siluriformes), with a redefinition of the genera" (PDF). Zootaxa. 1416: 1–126.
  2. ^ Froese, Rainer and Pauly, Daniel, eds. (2011). Species of Arius in FishBase. December 2011 version.


Stub icon

This Ariidae-related article is a stub. You can help Wikipedia by expanding it.

This page was last edited on 24 June 2024, at 17:05
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.
Contact WIKI 2
Introduction
Terms of Service
Privacy Policy