Peckoltini, Armbruster, Jonathan W. & Lujan, Nathan K., 2024

Armbruster, Jonathan W. & Lujan, Nathan K., 2024, New tribe-level classification of Hypostominae (Loricariidae) based on optimization of morphological states on DNA-based relationships, with descriptions of three new tribes and two new genera, Neotropical Ichthyology 22 (4), pp. e 240108-e 240108 : e240108-240108

Tribe Peckoltini , new tribe urn:lsid:zoobank.org:act:C1105224-245D-4807-A57A-C91C39D34EDC

Included genera.

Ancistomus Isbrücker, Seidel in Isbrücker et al., 2001:17.

Type-species: Ancistrus snethlageae Steindachner, 1911 .

Aphanotorulus Isbrücker, Nijssen, 1983:105 . Type-species: Aphanotorulus frankei Isbrücker & Nijssen, 1983 (synonym of A. unicolor (Steindachner, 1908)) . Synonym: Squaliforma Isbrücker & Michels, 2001 (in Isbrücker et al., 2001).

‘Baryancistrus’ beggini Lujan, Arce, Armbruster, 2009:51 .

‘Baryancistrus’ demantoides Werneke, Sabaj Pérez, Lujan, Armbruster, 2005a:535 .

‘Hemiancistrus’ guahiborum Werneke, Armbruster, Lujan, Taphorn, 2005b:544 .

‘ Hemiancistrus ’ landoni group (includes ‘ H. ’ landoni Eigenmann, 1916 (with ‘ H. ’ hammarlundi Rendahl, 1937 as a synonym) and ‘ H. ’ furtivus Provenzano & Barriga Salazar, 2017).

‘Hemiancistrus’ subviridis Werneke, Sabaj Pérez, Lujan, Armbruster, 2005a:538 .

Hypancistrus Isbrücker, Nijssen, 1991:347 . Type-species: H. zebra Isbrücker & Nijssen, 1991 . Synonym: Micracanthicus Lujan & Armbruster, 2011 .

Isorineloricaria Isbrücker, 1980:15 . Type-species: Plecostomus spinosissimus Steindachner, 1880 .

Panafilus Lujan et al., 2017:332. Type-species: Panaque albomaculatus Kanazawa, 1958 .

Panaqolus Isbrücker, Schraml , in Isbrücker et al., 2001:20. Type-species: Panaque gnomus Schaefer & Stewart, 1993 . With three subgenera (Panafilus, Panaqolus and Panaqoco per Lujan et al., 2017).

Peckoltia Miranda Ribeiro, 1912:1912. Type-species: Chaetostomus vittatus Steindachner, 1881 . Synonym: Etsaputu Lujan, Armbruster & Rengifo, 2011 .

Peckoltichthys Miranda Ribeiro, 1917:49. Type-species: Peckoltichthys filicaudatus Miranda Ribeiro, 1917 (synonym of Chaetostomus bachi Boulenger, 1898 ). Synonym: Sophiancistrus Isbrücker & Seidel, 2001 (in Isbrücker et al., 2001).

Pseudoqolus Lujan et al., 2017:333 . Type-species: Panaqolus koko Fisch-Muller, Covain, 2012 (in Fisch-Muller, Montoya-Burgos, le Bail, Covain, 2012).

Scobinancistrus Isbrücker, Nijssen, 1989:542 . Type-species: Scobinancistrus pariolispos Isbrücker & Nijssen, 1989 .

‘Spectracanthicus’ immaculatus Chamon, Rapp Py-Daniel, 2014:12 .

Phylogenetic diagnosis. No unambiguous character states were found to support Peckoltini .

Comparative diagnosis. Peckoltini is a diverse group of genera not easily separated as a group from other members of the Hypostominae . Peckoltini genera tend to have hypertrophied odontodes on lateral plates, especially along the caudal peduncle, while this character is not seen in other Hypostominae ; however, these hypertrophied caudal trunk odontodes are also unknown or presumed absent in some species of Peckoltini . Of Peckoltini genera, only Ancistomus lacks a recent taxonomic review, and it is largely separated from all other Hypostominae by having a gray head and body base color with black spots (vs. base color, white, tan, brown, or black).

Geographical distribution. Peckoltini is widely distributed throughout the Amazon, Orinoco, Essequibo and other coastal basins of the Guianas as well as the trans-Andean Guayas and Esmeraldas drainages in Ecuador, the Magdalena River, and the Lake Maracaibo basin.