Beatriz G. Lippert, Bárbara B. Calegari, and Roberto E. Reis (2014) A New Species of Otothyropsis (Siluriformes: Hypoptopomatinae) from Eastern Brazil. Copeia: June 2014, Vol. 2014, No. 2, pp. 238-244.
Otothyropsis alicula is described from the Rio Santo Antônio, Rio Grande basin, upper Rio Paraná drainage, Brazil. The new species is distinguished from its congeners by having a unique color pattern in the caudal fin, rectangular dorsal-fin spinelet, short pectoral-fin spine and first pelvic-fin ray, suture between contiguous bifid neural spines two-thirds the distance from the vertebral centrum to their distal tips, absence of an odontode crest on the posterior portion of the parieto-supraoccipital, and other morphometric and meristic features. An updated identification key to the species of Otothyropsis is provided.
New species of Otothyropsis
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