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Yann Fulliquet (3)

Description: Dorsal spines (total): 2; Dorsal soft rays (total): 7; Anal soft rays: 4. This species is distinguished from its congeners by the following set of characters: absence of spots or blotches on head and body; lower lips with rounded papillae; elongated odontodes on cheeks reaching the pectoral-fin spine when adpressed to body; space between the eyes not entirely covered by a blotch; parieto supraoccipital moderately elevated not forming an apparent crest; diminute plates with short odontodes on base of pectoral fins and anterior part of urogenital opening; prominent lateral wall of metapterygoid channel with sturdy base, including sinuous edges; adductor palatine crest forming a diminute, almost perceptible salient; upper and lower jaws with <25 teeth; seven saddles along the body; four oblique bars on body behind head, reaching further midventral plate rows series without fading; dark bars crossing membranes of dorsal fin; and yellow stripes of the head obliquely positioned on head, not larger than eye orbit. Body shape: elongated; Cross section: oval. Previously known as Peckoltia sp. 'Rio Tocantins' before description. Similar to L015 (P. vittata) from the Rio Xingu (Araújo, F.A.A et al. 2025). The Peckoltia genera possesses a medium sized mouth with the same amount of teeth in the lower and upper jaw. The lower end of the caudal fin is usually oblique and only slightly indented. Aquarium Care: No problem to keep and seem to be non-aggressive in a group of individuals. Should be kept in warm and soft to medium hard waters. Sexual Differences: Males have bristles behind the gill covers, on the pectoral fin spines and on the posterior part of the body. They also posses bristles on the upper caudal fin rays. Diet: Omnivores, easy to feed with frozen and live foods and also tablet and flake food. Should be kept at slightly higher temperatures and have a requirement for a higher oxygen intake. Etymology: The specific epithet ‘amjikin’ is treated as a noun in opposition. ‘Amji kin’ refers to a state of happiness for the Krahô people, speakers of the Timbira language (Macro-Jê trunk, Jês languages), and can be related to many cultural expressions within the Krahô's community, including singing, dancing, games, food bartering, and ceremonial rituals. The Krahôs are located east of the Tocantins State in Brazil.

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Loricariidae

South America: Rio Tocantins in São João do Araguaia city, PA, Brazil.

6.5cm. (2½ins)

25-29°c (77-85°f)

6.0-7.5.

Araújo, F.A.A., M.F.C. Ferreira, A.N. Silva and W.B. Wosiacki, 2025. A new species of Peckoltia (Siluriformes, Loricariidae) from the rapids of the Rio Tocantins-Araguaia basin, Brazil. J. Fish Biol. 1-10.
Fish in the News 2025.
Seidel, I. 2008. Back to Nature guide to L-catfishes, Ettlingen, Germany 208 p.