Bathyclarias Channallabes Clariallabes Clarias Dinotopterus Dolichallabes Encheloclarias Gymnallabes Heterobranchus Horaglanis Platyallabes Platyclarias Tanganikallabes Uegitglanis Xenoclarias
Airbreathing catfishes are fishes comprising the family Clariidae of order Siluriformes. About 14 genera and about 116 species of clariids are described. All the clariids are freshwater species.
1 Distribution 2 Description 3 Taxonomy 4 Relationship to humans 5 References
Although clariids occur in India, Syria, southern Turkey, and large
parts of Southeast Asia, their diversity is the largest in Africa.
Clariid catfishes are characterized by an elongated body, the presence
of four barbels, long dorsal and anal fins, and especially by the
autapomorphic presence of a suprabranchial organ, formed by tree-like
structures from the second and fourth gill arches. This
suprabranchial organ, or labyrinth organ, allows some species the
capability of traveling short distances on land (walking
The dorsal fin base is very long and is not preceded by a fin spine.
The dorsal fin may or may not be continuous with the caudal fin, which
is rounded. Pectoral and pelvic fins are variously absent in some
species. Some fish have small eyes and reduced or absent pectoral and
pelvic fins for a burrowing lifestyle. A few species are blind.
Within the family Clariidae, body forms range from fusiform
(torpedo-like) to anguilliform (eel-like). As species become more
eel-shaped, a whole set of morphological changes has been observed,
such as decrease and loss of the adipose fin, continuous unpaired
fins, reduction of paired fins, reduction of the eyes, reduction of
the skull bones, and hypertrophied jaw muscles.
The Heteropneustidae containing the genus
^ a b c d e Nelson, Joseph S. (2006).
Wd: Q574383 ADW: Clariidae EoL: 5106 Fossilworks: 131416 GBIF: 8978 ITIS: 164118 NCBI: 3