The type-species of Hyphessobrycon is redescribed and its osteology provided. Hyphessobrycon compressus is distinguished from its congeners by the 41-48 (mode 45) scales in the longitudinal series; 7-9 (mode 9) scales rows between the dorsal-fin origin and the lateral line, and absence of predorsal scales. Additional useful characters include the lack of spots on the body, a dorsal fin with a black spot, and an anal fin with two large, conspicuous hooks, and several other small hooks. Hyphessobrycon milleri is proposed as a junior synonym of H. compressus. The osteology of H. compressus is discussed in detail together with comments about phylogenetic relationships of Hyphessobrycon sensu stricto.
CITATION STYLE
Carvalho, F. R., & Malabarba, L. R. (2015). Redescription and osteology of Hyphessobrycon compressus (Meek) (Teleostei: Characidae), type species of the genus. Neotropical Ichthyology, 13(3), 513–540. https://doi.org/10.1590/1982-0224-20140173
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