Pariolius maldonadoi and Pariolius pax, two new species of heptapterid catfishes are described from the Upper Orinoco and Upper Negro rivers in Colombia.
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“Despite several ichthyological expeditions being carried out along the main rivers of the Colombian River and well-recorded Heptapteridae species in literature; Pariolius pax was found only in small creeks tributaries of the upper Orinoco River basin; while P. maldonadoi was found in small creeks tributaries of the Upper Orinoco and Negro Rivers; thus, making the two new species very restricted to these two Colombian basins.”
𝗥𝗲𝘀𝗲𝗮𝗿𝗰𝗵 𝗧𝗶𝘁𝗹𝗲
Increasing the species diversity of the monotypic genus Pariolius Cope 1872 (Siluriformes: Heptapteridae) after more than 150 years
𝗖𝗶𝘁𝗮𝘁𝗶𝗼𝗻
Faustino-Fuster, D. R., López-Castaño, J. A., Quiñones, J. M., & Meza-Vargas, V. (2024). Increasing the species diversity of the monotypic genus Pariolius Cope 1872 (Siluriformes: Heptapteridae) after more than 150 years. Zootaxa, 5433(3), 389–403. https://doi.org/10.11646/zootaxa.5433.3.6
𝗔𝗯𝘀𝘁𝗿𝗮𝗰𝘁
Pariolius is a heptapterid genus represented by 𝑃. 𝑎𝑟𝑚𝑖𝑙𝑙𝑎𝑡𝑢𝑠 that is distributed along the upper Amazon River basin. A taxonomic integrative revision of Pariolius from Colombian Rivers revealed two new species. Several approaches as morphological, morphometric, meristic, osteology and molecular data were used to distinguish between 𝑃𝑎𝑟𝑖𝑜𝑙𝑖𝑢𝑠 species.
The two new species are distinguished from congeners by the caudal-fin shape and numbers of rays, coloration patterns and several morphometric characters. The two new species of Pariolius are restricted to tributaries of the Upper Orinoco and Upper Negro rivers in Colombia.
𝗘𝘁𝘆𝗺𝗼𝗹𝗼𝗴𝘆
Pariolius maldonadoi – in memoriam to Javier Maldonado-Ocampo, professor of the Pontificia Universidad Javeriana in Bogotá, Colombia for his great contribution and devotion to the Colombian and Neotropical Ichthyology. A noun in apposition.
Pariolius pax – the specific epithet is given in allusion to the PAX, peace movement from the Netherlands, which since the early nineties has been working to protect human security, prevent armed conflicts and build societies with peace and justice in Colombia. A noun in apposition.
𝗣𝗵𝗼𝘁𝗼 𝗖𝗿𝗲𝗱𝗶𝘁
Live specimen of (A) Pariolius pax collected in Mapiripán Municipality, vereda San Jorge, Caño Ovejas tributary of the Guaviare River, Orinoco River basin, Meta, 335 Colombia (not preserved) and (B) Pariolius maldonadoi collected in Retorno Municipality, Caño Potosí tributary of the Inírida River, Orinoco River basin, Guaviare, Colombia.
Copyright © 2024 the Author(s). Published in Zootaxa journal.
