Journal Article

A new species of the blind and minature genus Micromyzon Friel and Lundberg, 1996 (Siluriformes: Asprendinidae) from the Orinoco River: describing catfish diversity using high-resolution computed tomography

Carvalho, T.P., Lundberg, J.G., Baskin, J.N., Friel, J.P. and Reis, R.E.

Record Number:
2966
Year:
2016
Journal:
Proceedings of the Academy of Natural Sciences of Philadelphia
Pages:
37-53
Volume:
165
PMCID:
https://doi.org/10.1635/053.165.0104
Abstract:
A new species of the aspredinid catfish tribe Hoplomyzontini Micromyzon is described from two specimens collected with trawl nets in two localities, at 10 and 18 m depth, in the main channel of the lower Orinoco River in Venezuela almost 40 years ago. The new species is distinguished from its only congener, Micromyzon akamai, by the: straight anterior margin of the mesethmoid; open posterior cranial fontanel; ossified first pectoral-fin radial; single tubular infraorbital bone; infraorbital sensory canal entering neurocranium via the frontal; enclosed foramen for the abductor superficialis muscle in the coracoid; higher vertebral count (33 vs. 28–32); higher anal-fin ray count (10 or 11 vs. 7–9); and some morphometric features. The holotype of the new species was scanned using High-Resolution X-ray Computed Tomography to illustrate, describe, and compare its bony skeleton to other hoplomyzontins.
Times Cited:
2
Relevent Species:
Micromyzon orinoco Carvalho, Lundberg, Baskin, Friel and Reis 2016Micromyzon akamai Friel and Lundberg 1996
Related Records:
Friel, J.P. (1994)
A phylogenetic study of the Neotropical banjo catfishes (Teleostei; Siluriformes: Aspredinidae)
Friel, J.P. (1994)
A phylogenetic study of the Neotropical banjo catfishes (Teleostei; Siluriformes: Aspredinidae)
Friel, J. and Lundberg, J.G. (1996)
Micromyzon akamai, Gen. et Sp. Nov., a small and eyeless banjo catfish (Siluriformes: Aspredinidae) from the river channels of the lower Amazon basin
Friel, J. and Lundberg, J.G. (1996)
Micromyzon akamai, Gen. et Sp. Nov., a small and eyeless banjo catfish (Siluriformes: Aspredinidae) from the river channels of the lower Amazon basin
Crampton, W.G.R. (2008)
Diversity and adaptation in deep-channel Neotropical electric fishes
Crampton, W.G.R. (2008)
Diversity and adaptation in deep-channel Neotropical electric fishes
Crampton, W.G.R. (2011)
An ecological perspective on diversity and distributions
Crampton, W.G.R. (2011)
An ecological perspective on diversity and distributions
Carvalho, T.P., Lundberg, J.G., Baskin, J.N., Friel, J.P. and Reis, R.E. (2016)
A new species of the blind and minature genus Micromyzon Friel and Lundberg, 1996 (Siluriformes: Asprendinidae) from the Orinoco River: describing catfish diversity using high-resolution computed tomography
Carvalho, T.P., Lundberg, J.G., Baskin, J.N., Friel, J.P. and Reis, R.E. (2016)
A new species of the blind and minature genus Micromyzon Friel and Lundberg, 1996 (Siluriformes: Asprendinidae) from the Orinoco River: describing catfish diversity using high-resolution computed tomography
Carvalho, T.P., Arce H., M., Reis, R.E. and Sabaj, M.H. (2018)
Molecular phylogeny of Banjo catfishes (Ostaryophisi: Siluriformes: Aspredinidae): A continental radiation in South American freshwaters
Carvalho, T.P., Arce H., M., Reis, R.E. and Sabaj, M.H. (2018)
Molecular phylogeny of Banjo catfishes (Ostaryophisi: Siluriformes: Aspredinidae): A continental radiation in South American freshwaters
Friel, J.P. and Carvalho, T. (2018)
Family Aspredinidae - Banjo catfishes
Friel, J.P. and Carvalho, T. (2018)
Family Aspredinidae - Banjo catfishes
Dagosta, F.C.P. and de Pinna, M.C.C (2019)
The fishes of the Amazon: Distribution and biogeographical patterns, with a comprehensive list of species
Dagosta, F.C.P. and de Pinna, M.C.C (2019)
The fishes of the Amazon: Distribution and biogeographical patterns, with a comprehensive list of species
Chuctaya, J., Encalada, A.C., Barragán, K.S., Torres, M.L., Rojas, K.E., Ochoa-Herrera, V. and Carvalho, T.P. (2021)
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. (2021)
New Ecuadorian records of the eyeless banjo catfish Micromyzon akamai (Siluriformes: Aspredinidae) expand the species range and reveal intraspecific morphological variation