Title
Akawaio penak, a new genus and species of Neotropical electric fish (Gymnotiformes, Hypopomidae) endemic to the upper Mazaruni River in the Guiana Shield
Abbreviated Journal Title
Zool. Scr.
Keywords
GUAYANA HIGHLANDS; DIVERSIFICATION; TELEOSTEI; GUYANA; SYSTEM; Evolutionary Biology; Zoology
Abstract
Akawaio penak, a new genus and species, is described from the upper Mazaruni River, Guyana. The new species is diagnosed from all other species of Hypopomidae by several anatomical traits. The phylogenetic affinities of the new genus were inferred using data from one nuclear (rag2) and two mitochondrial (COI and cyt b) genes. The phylogenetic analyses indicate that Akawaio is the sister taxon of a clade that includes Brachyhypopomus, Hypopomus, Microsternarchus and Racenisia. These results provide evidence for the phylogenetic composition of Hypopomidae supported by previous molecular studies and support the position of the Steatogenini (Hypopygus+Steatogenys) as the sister group of Rhamphichthys+Gymnorhamphichthys. The description of this new electric knifefish increases the total number of endemic genera and species in the upper Mazaruni, a region that is suffering freshwater habitat degradation as consequence of gold-mining activities.
Journal Title
Zoologica Scripta
Volume
43
Issue/Number
1
Publication Date
1-1-2014
Document Type
Article
DOI Link
Language
English
First Page
24
Last Page
33
WOS Identifier
ISSN
0300-3256
Recommended Citation
"Akawaio penak, a new genus and species of Neotropical electric fish (Gymnotiformes, Hypopomidae) endemic to the upper Mazaruni River in the Guiana Shield" (2014). Faculty Bibliography 2010s. 5774.
https://stars.library.ucf.edu/facultybib2010/5774
Comments
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