New species of Otothyropsis
Posted: 20 Jun 2014, 21:12
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.
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.