''Pseudohemiodon'' is a
genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
of
armored catfishes native to
South America
South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern Subregion#Americas, subregion o ...
.
Species
There are currently seven recognized species in this genus:
* ''
Pseudohemiodon amazonus''
( Delsman, 1941)
* ''
Pseudohemiodon apithanos''
Isbrücker & Nijssen, 1978
* ''
Pseudohemiodon devincenzii''
( Señorans, 1950)
* ''
Pseudohemiodon laminus
''Pseudohemiodon laminus'' is a species of Loricariidae, armored catfish endemism, endemic to Peru where it is found in the upper Amazon basin. This species grows to a length of fish measurement, SL.
References
*
Loricariini
Fish of S ...
''
( Günther, 1868)
* ''
Pseudohemiodon laticeps''
( Regan, 1904)
* ''
Pseudohemiodon platycephalus''
( Kner, 1853)
* ''
Pseudohemiodon thorectes''
Isbrücker, 1975
Distribution
''Pseudohemiodon'' is distributed in the
Amazon
Amazon most often refers to:
* Amazon River, in South America
* Amazon rainforest, a rainforest covering most of the Amazon basin
* Amazon (company), an American multinational technology company
* Amazons, a tribe of female warriors in Greek myth ...
,
Orinoco
The Orinoco () is one of the longest rivers in South America at . Its drainage basin, sometimes known as the Orinoquia, covers approximately 1 million km2, with 65% of it in Venezuela and 35% in Colombia. It is the List of rivers by discharge, f ...
, and
Paraná River
The Paraná River ( ; ; ) is a river in south-central South America, running through Brazil, Paraguay, and Argentina for some ."Parana River". Encyclopædia Britannica. Encyclopædia Britannica Online.
Encyclopædia Britannica Inc., 2012. Web. ...
basins.
Description
The body of ''Pseudohemiodon'' species is very flat and the
pelvic fin
Pelvic fins or ventral fins are paired fins located on the ventral (belly) surface of fish, and are the lower of the only two sets of paired fins (the other being the laterally positioned pectoral fins). The pelvic fins are homologous to the hi ...
s are used mainly for locomotion on sand.
Sexual dimorphism
Sexual dimorphism is the condition where sexes of the same species exhibit different Morphology (biology), morphological characteristics, including characteristics not directly involved in reproduction. The condition occurs in most dioecy, di ...
is unknown.
Ecology
Like other members of the ''Pseudohemiodon'' group, ''Pseudohemiodon'' occurs primarily over sandy substrates.
Also like the other genera in the ''Pseudohemiodon'' group, species of this genus are abdomino-lip brooders. The very large eggs are incubated by the male.
References
{{Taxonbar, from=Q5017428
Loricariini
Fish of the Amazon basin
Catfish of South America
Catfish genera
Taxa named by Pieter Bleeker
Freshwater fish genera