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:

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.