Sisoroidea is a
superfamily
SUPERFAMILY is a database and search platform of structural and functional annotation for all proteins and genomes. It classifies amino acid sequences into known structural domains, especially into SCOP superfamilies. Domains are functional, str ...
of
catfishes (
order
Order, ORDER or Orders may refer to:
* Categorization, the process in which ideas and objects are recognized, differentiated, and understood
* Heterarchy, a system of organization wherein the elements have the potential to be ranked a number of d ...
Siluriformes). It contains the four
families Amblycipitidae
The Amblycipitidae are a family of catfishes, commonly known as torrent catfishes. It includes three genus, genera, ''Amblyceps'', ''Liobagrus'', and ''Xiurenbagrus'', and about 36 species.
Taxonomy
The family Amblycipitidae is a monophyly, mono ...
,
Akysidae,
Sisoridae, and
Erethistidae; many sources also include
Aspredinidae. With Aspredinidae, this superfamily includes about 42
genera
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclat ...
and 230
species.
Taxonomy
Sisoroidea is
sister to the
Loricarioidea.
The
monophyly of this superfamily is supported by a number of
morphological characters.
Amblycipitidae is the most
basal
Basal or basilar is a term meaning ''base'', ''bottom'', or ''minimum''.
Science
* Basal (anatomy), an anatomical term of location for features associated with the base of an organism or structure
* Basal (medicine), a minimal level that is nec ...
family and is sister to the remaining families.
Based on morphological data, Erethistidae is the sister group to Aspredinidae, with Sisoridae being the sister group of the
clade
A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, ...
formed by these two families.
However, it has been proposed to move the erethistid genera back into Sisoridae.
Also, some authors have removed Aspredinidae from Sisoroidea, having found it to be more closely related to Doradoidea (Doradidae, Auchenipteridae, and possibly Mochokidae) with morphological and molecular evidence.
Distribution
Sisoroidea includes almost exclusively
Asiatic catfish families with the exception of
Aspredinidae, which is native to
South America.
References
Siluriformes
{{catfish-stub