The South American annual killifish genus Austrolebias (Teleostei: Cyprinodontiformes: Rivulidae): phylogenetic relationships, descriptive morphology and taxonomic revision.
Wilson J. E. M. Costa
Zootaxa
2006
1213
1
162
JWWR
653304
Rivulidae
Austrolebias
CoL
Animalia
Cyprinodontiformes
31
Chordata
species
robustus
Rivulidae
Austrolebias
CoL
Animalia
Cyprinodontiformes
31
Chordata
species
cinereus
Diagnosis Clade supported by a wide second basibranchial, with pronounced lateral tips, and an obliquely positioned medial process of the second pharyngobranchial. Larger adult males also have a unique color pattern consisting of homogeneous dark gray coloration on flank, sometimes with narrow light lines, but never with bright markings.