A new species of Otothyropsis (Siluriformes: Loricariidae) from the rio Paraguay basin, Paraguay
Neotrop. ichthyol
; 9(2): 253-260, Apr.-June 2011. ilus, mapas, tab
Article
in En
| LILACS
| ID: lil-593199
Responsible library:
BR68.1
ABSTRACT
Otothyropsis piribebuy, new species, is described from the río Piribebuy, a tributary to the río Paraguay basin, Cordillera, Paraguay. The new species is distinguished from O. marapoama mainly by having a continuous mid-dorsal series of 17-18 lateral plates, a robust levator crest in the hyomandibula, naked areas in the abdomen, an unpigmented circular blotch on the median portion of the lower lobe, and by several features related to sexual dimorphism. In addition, Otothyropsis is re-diagnosed and its phylogenetic relationships are discussed based on its present diversity.
RESUMO
Otothyropsis piribebuy, espécie nueva, es descrita del río Piribebuy, cuenca del río Paraguay, Departamento de Cordillera, en Paraguay. La espécie nueva es diferenciada de O. marapoama principalmente por presentar una serie continua de 17 a 18 placas laterales médio-dorsales, cresta levator robustaen la hiomandíbula, abdomen con áreas desnudas, ausencia de pigmentación en la región media del lóbulo inferior con formato circular, y por la presencia de diversas características de dimorfismo sexual. Adicionalmente, es presentada una rediagnosis para Otothyropsis, discutida sus relaciones filogenéticas y su actual diversidad.
Key words
Full text:
1
Collection:
01-internacional
Database:
LILACS
Main subject:
Phylogeny
/
Fishes
Limits:
Animals
Country/Region as subject:
America do sul
/
Paraguay
Language:
En
Journal:
Neotrop. ichthyol
Journal subject:
BIOLOGIA
/
BIOLOGIA MOLECULAR
/
FISIOLOGIA
/
GENETICA
/
SAUDE AMBIENTAL
/
ZOOLOGIA
Year:
2011
Type:
Article
Affiliation country:
Brazil