Farlowella wuyjugu, new species from the lower Rio Tapajós

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bekateen
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Farlowella wuyjugu, new species from the lower Rio Tapajós

Post by bekateen »

, new species

Dopazo M, Wosiacki WB, & MR Britto. (2023). New species of Farlowella (Siluriformes: Loricariidae) from the rio Tapajós basin, Pará, Brazil. Neotrop Ichthyol, 21(1):e220097.
https://doi.org/10.1590/1982-0224-2022-0097
https://www.scielo.br/j/ni/a/h8BbxP4W8NHSzpN3nWRvhQQ/

𝗔𝗯𝘀𝘁𝗿𝗮𝗰𝘁
A new species of stick-catfish is described from the streams of the lower rio Tapajós drainage, in Pará State, northern Brazil. The new species is distinguished from all congeners by a naked gular region (vs. gular region with plates) and from most congeners by the presence of five lateral series of plate rows on anterior region of body (vs. four). The new species shows variation in the series of abdominal plates and a discussion on the variation of abdominal plates within Farlowella is made and comments on synapomorphic characters in Farlowellini.
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FIGURE 2. Dorsal, lateral and ventral view of Farlowella wuyjugu , holotype, 143.4 mm SL, MPEG 26178, Brazil, Pará State, Juruti municipality, igarapé Rio Branco, lower rio Tapajós, rio Amazon basin.
FIGURE 2. Dorsal, lateral and ventral view of Farlowella wuyjugu , holotype, 143.4 mm SL, MPEG 26178, Brazil, Pará State, Juruti municipality, igarapé Rio Branco, lower rio Tapajós, rio Amazon basin.
FIGURE 3. Gular region and variation of abdominal plates in specimens, ventral view of Farlowella wuyjugu . A. MPEG 26178, 143.4 mm SL; B. INPA 59894, 128.9 mm SL; C. MPEG 12684, 125mm SL.
FIGURE 3. Gular region and variation of abdominal plates in specimens, ventral view of Farlowella wuyjugu . A. MPEG 26178, 143.4 mm SL; B. INPA 59894, 128.9 mm SL; C. MPEG 12684, 125mm SL.
FIGURE 4. Caudal fin coloration of Farlowella wuyjugu . MPEG 31191, 119.9 mm SL.
FIGURE 4. Caudal fin coloration of Farlowella wuyjugu . MPEG 31191, 119.9 mm SL.
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bekateen
Posts: 9325
Joined: 09 Sep 2014, 17:50
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Re: Farlowella wuyjugu, new species from the lower Rio Tapajós

Post by bekateen »

Note: On this date (2023-04-28), I did a hack job on the forum key to the genus Farlowella, as found here: https://www.planetcatfish.com/forum/vie ... 37#p324637

Since this new species differs from all other Farlowella by lacking gular plates, I merely added a step "0" to the dichotomous key in order to incorporate this new species into the existing key. A properly made key would renumber the steps starting with "1".

Cheers, Eric
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