Peckoltia
| Peckoltia | |
|---|---|
 |
|
| Peckoltia compta | |
 |
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| Peckoltia greedoi | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Loricariidae |
| Tribe: | Ancistrini |
| Genus: |
Peckoltia A. Miranda-Ribeiro, 1912 |
| Type species | |
|
Chaetostomus vittatus Steindachner, 1881 |
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| Synonyms | |
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Etsaputu Lujan, Armbruster & Rengifo, 2011 |
|
Etsaputu Lujan, Armbruster & Rengifo, 2011
Sophiancistrus Isbrücker & Seidel, 2001
Peckoltia is a genus of small South American armored suckermouth catfishes. Many of these fish are popular aquarium fish.
Peckoltia is a basal genus within the tribe Ancistrini of the subfamily Hypostominae. This genus is paraphyletic. At this point, many undescribed species remain. Many of the possibly undescribed species have an identification through the L-number system.
Peckoltia species can be distinguished from most other in the genera in the tribe Ancistrini by having a lateral ridge on the opercle that usually has no odontodes and the teeth on their upper jaw (dentary) forming an angle under 90 degrees; while some genera also have an angled dentary, Peckoltia species lack synapomorphies of these genera. This genus and the closely related Hemiancistrus may be synonymous, as neither genus is supported by synapomorphies. Generally, Peckoltia are considered to be those that have dorsal saddles and bands in the fins, while Heminancistrus have spots and uniform coloration. This genus is also similar to Hypancistrus and Panaque except for differences in teeth. Teeth on both jaws are the same size as opposed to different sizes, which is different from Hypancistrus where the upper jaw teeth are larger. Also, the teeth are villiform (brush-shaped) rather than spoon-shaped, in contrast to the Panaque.
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