A New Species of the Ornamental Catfish Genus Peckoltia (Siluriformes: Loricariidae) from Rio Xingu Basin, Brazilian Amazon
 

A New Species of the Ornamental Catfish Genus Peckoltia (Siluriformes: Loricariidae) from Rio Xingu Basin, Brazilian Amazon

Renildo R. de Oliveira, Lucia Rapp Py-Daniel, Jansen Zuanon, and Marcelo S. Rocha

Copeia 2012(3):547-553. 2012

Peckoltia is one of the 26 genera that constitute the Ancistrini. Although Peckoltia has been reviewed recently, its taxonomic status is not fully resolved and not easily distinguished from Hemiancistrus. Neither Peckoltia nor Hemiancistrus have any recognized synapomorphies supporting their monophyly. In this paper we describe a new species of Ancistrini from Rio Xingu drainage, Pará State, Brazil, and assign it to Peckoltia based on its deep body, presence of large odontodes on the cheeks, and lack of carenate plates on the body. The new species can be easily distinguished from all its congeners by its dorsal-fin color pattern (presence of dark thin stripes in the interradial membranes parallel to fin rays that fragment into small spots in larger specimens vs. bands, spots, dots, or membranes with a darker coloration in all other species). Peckoltia feldbergae, new species, differs from all its congeners except P. bachi, P. oligospila, and P. sabaji by having dark brown spots on the entire body (vs. presence of dark transversal bars on the body or a uniform color). Peckoltia feldbergae, new species, can be distinguished from P. oligospila and P. sabaji by a smaller postanal length (28.4–32.4% of SL vs. 34.3–38.8 and 35.7–41.0%, respectively). The description of this species is part of an effort to improve our knowledge about the remarkable diversity of rapids-dwelling loricariid catfishes that are greatly threatened by the construction of several large hydroelectric dams in Brazilian Amazon, and to provide a scientific name for a species exploited by the international aquarium fish trade.

Dabei handelt es sich um Ancistomus sp. "L 12" = L 13




lg Daniel

Hi Daniel
schreibst Du bitte auch noch die Quelle rein
Danke und Grüße
Jost

Und bitte die auch die Autoren. :-)

Viele Grüße
Norman

Hi Jost,

Renildo R. de Oliveira, Lucia Rapp Py-Daniel, Jansen Zuanon, and Marcelo S. Rocha

Copeia 2012(3):547-553. 2012

Viele Grüße
Norman

Hi,
schreiben die Autoren ja, um welche L-Nummern es sich handelt:
Zitat aus de Oliveira et al:
Remarks.—This species is well known in the aquarium trade
as L12 and L13, which correspond to juvenile and adult
forms, respectively (Seidel, 2008); the species of Peckoltia
referred to as L163 (Stawikowski et al., 2003; Schraml and
Fig. 4. Map of Brazil, showing part of the Rio Xingu basin and the
collecting localities of Peckoltia feldbergae. 1, Gorgulho da Rita; 2, Ilha
de Babaquara (type locality); 3, Costa Junior; 4, Ilha do Carupe´ ; 5, Rio
Iriri, below mouth of Rio Novo; 6, mouth of the Rio Iriri; 7, Cachoeira
Grande; 8, Rio Curua´ . Drawing by R. Frederico.
Fig. 3. Peckoltia feldbergae, INPA 28953, paratype, 131.1 mm SL in
dorsal and lateral view, showing the hypertrophied odontodes on
cheeks and on pectoral-fin spine (Photo: RRO).
de Oliveira et al.—New Peckoltia from Xingu basin 551
Scha¨fer, 2004), known from the rio Para´ , municipality of
Portel, Para´ state, is considered by the international
aquarium fish community as an additional undescribed
form. Nevertheless, we were unable to find recognizable
differences between L163 and Peckoltia feldbergae when
comparing the available images of that species (Schraml
and Scha¨fer, 2004); only the careful examination of living or
preserved specimens of both species will allow a conclusion
about the identity of L163.

Hier habt ihr auch noch ein Bild vom Holotypen ;) :



Und drei der vier Autoren (Lucia Rapp ist leider grad auf Urlaub):

Rocha, Zuanon, Oliveira:



Danke an Renildo de Oliveira, der mich mit den ganzen Holotypen rumspielen lässt ;)

Hi Walter,

das Bild landet bald in der DB, danke.

"Nevertheless, we were unable to find recognizable differences between L163 and Peckoltia feldbergae when comparing the available images of that species (Schraml and Schaefer, 2004); only the careful examination of living or preserved specimens of both species will allow a conclusion about the identity of L163."

Auch wenn Bilder wenig sind um eine genaue Aussage treffen zu können, würde es mich nicht überraschen, wenn es die gleiche Art ist.


lg Daniel

Hi,

Holotyp L 134 neben Holotyp L 12 / 13 gefällig? ;)

Peckoltia feldbergae (li.), P. comptae (re.):

Mach mir ruhig noch mehr Arbeit. :)


der Daniel

Mecker mal nicht, Daniel

Er sagt dir sogar welcher der P. compta ist:evil:

Hi Daniel,

davon mal ganz abgesehen warst du ja jetzt 3 Wochen im Urlaub :D