Journal Article

New Ecuadorian records of the eyeless banjo catfish Micromyzon akamai (Siluriformes: Aspredinidae) expand the species range and reveal intraspecific morphological variation

Chuctaya, J., Encalada, A.C., Barragán, K.S., Torres, M.L., Rojas, K.E., Ochoa-Herrera, V. and Carvalho, T.P.

Record Number:
5262
Year:
2021
Journal:
Journal of Fish Biology
Pages:
1186-1191
Volume:
98
Short Title:
Micromyzon akamai
PMCID:
https://doi.org/ 10.1111/jfb.14630
Abstract:
Two specimens of Micromyzon akamai, an eyeless and miniaturized species previously known only from the deep channels of the eastern Amazon basin in Brazil, are reported from the Curaray River, a tributary of the Napo River in Ecuador. The new specimens are the first records of Micromyzon in the headwaters of the Amazon River and the first records of M. akamai outside Brazil. External morphological characters and a phylogenetic analysis of cytochrome c oxidase I (coI) gene support the identification of the new specimens as M. akamai. Nevertheless, the new specimens also indicate that some features previously hypothesized to be apomorphic for M. akamai are intraspecifically variable. KEYWORDS cytochrome c oxidase I, deep-channel fishes, freshwater fish, Napo, Neotropical, taxonomy
Times Cited:
2
Relevent Species:
Micromyzon akamai Friel and Lundberg 1996Micromyzon orinoco Carvalho, Lundberg, Baskin, Friel and Reis 2016