- Parotocinclus
Taxobox
name = "Parotocinclus"
regnum =Animal ia
phylum = Chordata
classis =Actinopterygii
ordo = Siluriformes
familia =Loricariidae
subfamilia =Hypoptopomatinae
tribus =Otothyrini
genus = "Parotocinclus"
genus_authority = Eigenmann & Eigenmann, 1889
type_species = "Otocinclus maculicauda"
type_species_authority = Steindachner, 1877
subdivision_ranks = Species
subdivision = "P. amazonensis"
"P. aripuanensis"
"P. bahiensis"
"P. bidentatus"
"P. britskii"
"P. cearensis"
"P. cesarpintoi"
"P. collinsae"
"P. cristatus"
"P. doceanus"
"P. eppleyi"
"P. haroldoi"
"P. jimi"
"P. jumbo"
"P. longirostris"
"P. maculicauda"
"P. minutus"
"P. muriaensis"
"P. planicauda"
"P. polyochrus"
"P. prata"
"P. spilosoma"
"P. spilurus""Parotocinclus" is a
genus ofcatfish es (order Siluriformes) of the familyLoricariidae .Taxonomy
By an analysis published in 2005, "Parotocinclus" is not a monophyletic genus. "P. jumbo" is not closely related to "P. maculicauda", but is positioned, instead, as a basal lineage of the
Hypoptopomatinae . Additionally, "P. collinsae" is not closely related to "P. maculicauda", and may be more closely related to "Hypoptopoma " and four other genera. "P. jumbo" and "P. collinsae" may eventually be transferred to new genera. "P. bidentatus" and "P. muriaensis" form a monophyletic pair of sister taxa that is more closely related to a subset of species of "Parotocinclus" (which includes "P. maculicauda") than to any other genus of the subfamily Hypoptopomatinae.cite journal|url=http://www.ufrgs.br/ni/vol3num4%5CNI_v3n4p509-518lowr.pdf|title=Two new species of Hypoptopomatinae from the rio Paraíba do Sul basin, with comments on the monophyly of "Parotocinclus" and the Otothyrini (Siluriformes: Loricariidae)|first=Marco F. W.|last=Gauger|coauthors=Buckup, Paulo Andreas|journal=Neotropical Ichthyology|volume=3|issue=4|pages=509–518|year=2005|format=PDF |doi=10.1590/S1679-62252005000400008]Distribution
"Parotocinclus" species are distributed in the Atlantic coastal drainages of
Guyana andSurinam , eastern and southeasternBrazil .cite journal|title=A New Species of the Loricariid Genus "Parotocinclus" from Southern Venezuela (Pisces: Siluroidei)|first=Scott A.|last=Schaefer|journal-Copeia |year=1988|issue=1|pages=182–188] Seven species of "Parotocinclus" are known from Brazilian rivers south of theSão Francisco River basin: "P. maculicauda" (southeastern coastal rivers fromEspírito Santo to Santa Catarina States); "P. bahiensis" (Senhor do Bonfim ,Bahia State); "P. doceanus" (Doce River , Espírito Santo State); "P. minutus" (Canudos , Bahia State); "P. cristatus" (Ilhéus , Bahia State); "P. jimi" (Itagibá , Bahia State); and "P. planicauda" (Suaçui Pequeno River , a tributary of the Doce River, flowing near the city of Coroaci, Minas Gerais State).Description
Most species of "Parotocinclus" have the
caudal peduncle oval in cross section; however, in "P. planicauda" and "P. cristatus", it is quadrangular.cite journal|url=http://www.scielo.br/pdf/bjb/v63n2/a10v63n2.pdf|title="Parotocinclus planicauda", a New Species of the Subfamily Hypoptopomatinae from Southeastern Brazil (Ostariophysi: Loricariidae)|last=Garavello|first=J. C.|coauthors=Britski, H. A.|journal=Braz. J. Biol.|volume=63|issue=2|pages=253–260|year=2003|format=PDF |doi=10.1590/S1519-69842003000200010]Ecology
It has been found that "
Characidium " species may interact with "Parotocinclus maculicauda ". The small "Characidium" will follow grazing "P. maculicauda", which release particulate matter dislodged from the catfish's foraging. [cite journal|last=Leitao|first=Rafael P.|coauthors=Caramaschi, Érica P.; Zuanon, Jansen|title=Following food clouds: feeding association between a minute loricariid and a characidiin species in an Atlantic Forest stream, Southeastern Brazil|journal=Neotrop. Ichthyol.|year=2007|volume=5|issue=3|pages=307–310|url=http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000300011&lng=en&nrm=iso|doi=10.1590/S1679-62252007000300011]References
Wikimedia Foundation. 2010.