Paracetopsis: Difference between revisions

Paracetopsis
	Paracetopsis bleekeri
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Siluriformes
Family:	Cetopsidae
Subfamily:	Cetopsinae
Genus:	Paracetopsis; Bleeker, 1862
Type species
	Paracetopsis bleekeri; Bleeker, 1862
Synonyms
	Paracetopsis; Eigenmann & Bean, 1907; Cetopsogiton; Eigenmann & Bean, in Eigenmann, 1910;

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Paracetopsis is a genus of whale catfishes found in tropical South America.

Species[edit]

There are currently three recognized species in this genus:^[1]

Paracetopsis atahualpa Vari, Ferraris & de Pinna, 2005
Paracetopsis bleekeri Bleeker, 1862
Paracetopsis esmeraldas Vari, Ferraris & de Pinna, 2005

Distribution[edit]

Paracetopsis species are known from river drainages of the Pacific coast of Peru and Ecuador.

Description[edit]

Paracetopsis species can be distinguished from species of all other genera in the Cetopsinae by the combination of the possession of a vomerine tooth patch with two or more rows of teeth and a medial gap between the contralateral components of the tooth patch.^[2] Like in other species of cetopsines, mature males have elongated distal filaments of the dorsal and pectoral fin rays and a convex (instead of straight) margin to the anal fin.^[2]

The body is relatively elongate; anteriorly the body is not compressed much, but becomes progressively compressed posteriorly. The lateral line is complete and midlateral; though unbranched in P. bleekeri and P. esmeraldas, in P. atahualpa the lateral line has a few ventrally direct branches on the caudal peduncle. The dorsal profile is straight to slightly convex; the ventral profile is convex at the abdomen and straight posteriorly. The caudal peduncle depth is approximately equal to its length. The head in profile is acutely triangular overall with a bluntly rounded snout. The eyes are placed on the sides of the head and are visible from above, but not from below. The mouth is inferior and the width is about one-half the length of the head. They have three pairs of barbels, one pair of slender maxillary barbels and two pairs of mental barbels; all three pairs of barbels are approximately the same length. The caudal fin is moderately to deeply forked and symmetrical with the tips of the lobes slightly rounded. The base of the anal fin is comparatively long. The pelvic fins are also usually moderately long.^[2]

P. atahualpa has shorter pelvic fins and is darker in colour than P. bleekeri. P. atahualpa has a maxillary barbel with a distinctly dark base instead of a pale base and a distinct notch behind the head that is not present in P. esmeraldas. Both P. atahualpa and P. esmeraldas have a distinct patch of pigment on the operculum not present in P. bleekeri.^[2]

References[edit]

^ Froese, Rainer and Pauly, Daniel, eds. (2011). Species of Paracetopsis in FishBase. December 2011 version.
^ ^a ^b ^c ^d Vari, Richard P.; Ferraris, Carl J.; de Pinna, Mário C. C. (2005). "The Neotropical whale catfishes (Siluriformes: Cetopsidae: Cetopsinae), a revisionary study". Neotropical Ichthyology. 3 (2): 127–238. doi:10.1590/S1679-62252005000200001.

[1] Froese, Rainer and Pauly, Daniel, eds. (2011). Species of Paracetopsis in FishBase. December 2011 version.

[Vari-2] Vari, Richard P.; Ferraris, Carl J.; de Pinna, Mário C. C. (2005). "The Neotropical whale catfishes (Siluriformes: Cetopsidae: Cetopsinae), a revisionary study". Neotropical Ichthyology. 3 (2): 127–238. doi:10.1590/S1679-62252005000200001.

[1]

[2]

@@ Line 1: / Line 1: @@
+{{Short description|Genus of fishes}}
-{{Taxobox
+{{Automatic taxobox
-| name = ''Paracetopsis''
+| image = FMIB 52352 Paracetopsis occidentalis.jpeg
-| regnum = [[Animal]]ia
+| image_caption = ''Paracetopsis bleekeri''
-| phylum = [[Chordate|Chordata]]
+| taxon = Paracetopsis
-| classis = [[Actinopterygii]]
+| authority = [[Pieter Bleeker|Bleeker]], 1862
-| ordo = [[Catfish|Siluriformes]]
-| familia = [[Cetopsidae]]
-| subfamilia = [[Cetopsinae]]
-| genus = '''''Paracetopsis'''''
-| genus_authority = [[Pieter Bleeker|Bleeker]], 1862
 | type_species = ''Paracetopsis bleekeri''
 | type_species_authority = Bleeker, 1862
 | subdivision_ranks = Species
 | subdivision =
-*''[[Paracetopsis atahualpa]]''
-*''[[Paracetopsis bleekeri]]''
-*''[[Paracetopsis esmeraldas]]''
 | synonyms =
 *''Paracetopsis''<br><small>[[Carl H. Eigenmann|Eigenmann]] & Bean, 1907</small>
@@ Line 21: / Line 14: @@
 }}
+'''''Paracetopsis''''' is a [[genus]] of [[whale catfish]]es found in [[tropical]] [[South America]].
-'''''Paracetopsis''''' is a [[genus]] of [[catfish]]es ([[order (biology)|order]] Siluriformes) of the [[family (biology)|family]] [[Cetopsidae]]. It includes three [[species]], ''P. atahualpa'', ''P. bleekeri'', and ''P. esmeraldas''.<ref name="Vari">{{cite journal|url=http://www.ufrgs.br/ni/vol3num2/Artigo01P127-238lr.pdf|title=The Neotropical whale catfishes (Siluriformes: Cetopsidae: Cetopsinae), a revisionary study|first=Richard P.|last=Vari|coauthors=Ferraris, Carl J.; de Pinna, Mário C. C.|journal=Neotropical Ichthyology|volume=3|issue=2|pages=127–238|year=2005|format=[[PDF]]|doi=10.1590/S1679-62252005000200001}}</ref><ref name="Ferraris">{{cite journal|url=http://silurus.acnatsci.org/ACSI/library/biblios/2007_Ferraris_Catfish_Checklist.pdf|title=Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types|first=Carl J., Jr.|last=Ferraris|journal=[[Zootaxa]]|volume=1418|pages=1–628|year=2007|format=[[PDF]]}}</ref>
+== Species ==
+There are currently three recognized species in this genus:<ref>{{FishBase genus | genus = Paracetopsis| month = December | year = 2011}}</ref>
+* ''[[Paracetopsis atahualpa]]'' <small>[[Richard Peter Vari|Vari]], [[Carl J. Ferraris Jr.|Ferraris]] & [[Mário Cesar Cardoso de Pinna|de Pinna]], 2005</small>
+* ''[[Paracetopsis bleekeri]]'' <small>[[Pieter Bleeker|Bleeker]], 1862</small>
+* ''[[Paracetopsis esmeraldas]]'' <small>[[Richard Peter Vari|Vari]], [[Carl J. Ferraris Jr.|Ferraris]] & [[Mário Cesar Cardoso de Pinna|de Pinna]], 2005</small>
 ==Distribution==
+''Paracetopsis'' species are known from river drainages of the Pacific coast of [[Peru]] and [[Ecuador]].
-''Paracetopsis'' species are known from rivers of the Pacific Ocean versant. ''P. atahualpa'' is only known from the Pacific Ocean versant [[Tumbes River]] basin in northwestern [[Peru]] and the adjoining upper reaches of the [[Zarumilla River]] basin in southwestern [[Ecuador]]. ''P. bleekeri'' is only known from the Pacific Ocean versant [[Guayas River]] and [[Santa Rosa River]] basins of southwestern Ecuador. ''P. esmeraldas'' occurs in the Pacific Ocean versant rivers of northwestern Ecuador.<ref name="Vari"/>
 ==Description==
-''Paracetopsis'' species can be distinguished from species of all other genera in the Cetopsinae by the combination of the possession of a [[vomer]]ine tooth patch with two or more rows of teeth and a medial gap between the contralateral components of the tooth patch.<ref name="Vari"/> Like in other species of cetopsines, mature males have elongated distal filaments of the dorsal and pectoral fin rays and a convex (instead of straight) margin to the anal fin.<ref name="Vari"/>
+''Paracetopsis'' species can be distinguished from species of all other genera in the Cetopsinae by the combination of the possession of a [[vomer]]ine tooth patch with two or more rows of teeth and a medial gap between the contralateral components of the tooth patch.<ref name="Vari"/> Like in other species of cetopsines, mature males have elongated distal filaments of the dorsal and pectoral fin rays and a convex (instead of straight) margin to the anal fin.<ref name="Vari">{{cite journal|title=The Neotropical whale catfishes (Siluriformes: Cetopsidae: Cetopsinae), a revisionary study|first=Richard P.|last=Vari|author2=Ferraris, Carl J.|author3=de Pinna, Mário C. C.|journal=Neotropical Ichthyology|volume=3|issue=2|pages=127–238|year=2005|doi=10.1590/S1679-62252005000200001|doi-access=free}}</ref>
-The body is relatively elongate; anteriorly the body is not compressed much, but becomes progressively compressed posteriorly. The [[lateral line]] is complete and midlateral; though unbranched in ''P. bleekeri'' and ''P. esmeraldas'', in ''P. atahualpa'' the lateral line has a few ventrally-direct branches on the [[caudal peduncle]]. The dorsal profile is straight to slightly convex; the ventral profile is convex at the abdomen and straight posteriorly. The caudal peduncle depth is approximately equal to its length. The head in profile is acutely triangular overall with a bluntly rounded snout. The eyes are placed on the sides of the head and are visible from above, but not from below. The mouth is inferior and the width is about one-half the length of the head. They have three pairs of barbels, one pair of slender maxillary barbels and two pairs of mental barbels; all three pairs of barbels are approximately the same length. The [[caudal fin]] is moderately- to deeply-forked and symmetrical with the tips of the lobes slightly rounded. The base of the [[anal fin]] is comparatively long. The pelvic fins are also usually moderately long.<ref name="Vari"/>
+The body is relatively elongate; anteriorly the body is not compressed much, but becomes progressively compressed posteriorly. The [[lateral line]] is complete and midlateral; though unbranched in ''P. bleekeri'' and ''P. esmeraldas'', in ''P. atahualpa'' the lateral line has a few ventrally direct branches on the [[caudal peduncle]]. The dorsal profile is straight to slightly convex; the ventral profile is convex at the abdomen and straight posteriorly. The caudal peduncle depth is approximately equal to its length. The head in profile is acutely triangular overall with a bluntly rounded snout. The eyes are placed on the sides of the head and are visible from above, but not from below. The mouth is inferior and the width is about one-half the length of the head. They have three pairs of barbels, one pair of slender maxillary barbels and two pairs of mental barbels; all three pairs of barbels are approximately the same length. The [[caudal fin]] is moderately  to deeply forked and symmetrical with the tips of the lobes slightly rounded. The base of the [[anal fin]] is comparatively long. The pelvic fins are also usually moderately long.<ref name="Vari"/>
 ''P. atahualpa'' has shorter pelvic fins and is darker in colour than ''P. bleekeri''. ''P. atahualpa'' has a maxillary barbel with a distinctly dark base instead of a pale base and a distinct notch behind the head that is not present in ''P. esmeraldas''. Both ''P. atahualpa'' and ''P. esmeraldas'' have a distinct patch of pigment on the [[operculum (fish)|operculum]] not present in ''P. bleekeri''.<ref name="Vari"/>
@@ Line 35: / Line 34: @@
 ==References==
 <references/>
+{{Taxonbar|from=Q7133848}}
 [[Category:Cetopsidae]]
 [[Category:Fish of South America]]
 [[Category:Fauna of Ecuador]]
 [[Category:Fauna of Peru]]
+[[Category:Catfish genera]]
+[[Category:Taxa named by Pieter Bleeker]]
+[[Category:Freshwater fish genera]]