Simpsonichthys (Hypsolebias)

Wilson J. E. M. Costa, 2007, Taxonomic revision of the seasonal South American killifish genus Simpsonichthys (Teleostei: Cyprinodontiformes: Aplocheiloidei: Rivulidae)., Zootaxa 1669, pp. 1-134: 54

publication ID

z01669p001

publication LSID

lsid:zoobank.org:pub:F23FABE8-719E-4F7E-B225-A9C5D45CCFCE

persistent identifier

http://treatment.plazi.org/id/B30FA1B0-E93B-EBA4-06D1-C467AC17CBB9

treatment provided by

Thomas

scientific name

Simpsonichthys (Hypsolebias)
status

 

Subgenus Hypsolebias  Costa, 2006

Hypsolebias  Costa, 2006b: 17 (type species: Cynolebias flavicaudatus  ZBK  Costa & Brasil; type by original designation).

Diagnosis

Distinguished from the other subgenera of Simpsonichthys  ZBK  in having the second pharyngobranchial longer than wide (vs. wider than long). Another synapomorphy of Hypsolebias  is the presence of a shortened lateroventral process of the hyomandibula, which independently occurs in some species of Spectrolebias  (vs. wide process).

Included species

Simpsonichthys ocellatus  ZBK  Costa, Nielsen & De Luca, S. stellatus  (Costa & Brasil), S. nielseni  ZBK  Costa, S. rufus  ZBK  Costa, Nielsen & De Luca, S. notatus  (Costa, Lacerda & Brasil), S. radiosus  ZBK  Costa & Brasil, S. similis  ZBK  Costa & Hellner, S. gibberatus  Costa & Brasil, S. trilineatus  (Costa & Brasil), S. auratus  ZBK  Costa & Nielsen, S. virgulatus  Costa & Brasil, S. hellneri  (Berkenkamp), S. adornatus  ZBK  Costa, S. fulminantis  (Costa & Brasil), S. carlettoi  ZBK  Costa & Nielsen, S. magnificus  (Costa & Brasil), S. picturatus  ZBK  Costa, S. antenori  (Tulipano), S. igneus  ZBK  Costa, S. macaubensis  Costa & Suzart, S. ghisolfii  ZBK  Costa, Cyrino & Nielsen, S. mediopapillatus  Costa, S. flavicaudatus  (Costa & Brasil), S. flagellatus  ZBK  Costa, S. janaubensis  Costa, S. marginatus  ZBK  Costa & Brasil, S. delucai  ZBK  Costa, S. alternatus  (Costa & Brasil), S. multiradiatus  (Costa & Brasil), S. flammeus  (Costa), and S. brunoi  ZBK  Costa.

Distribution

Central and northeastern Brazil, including the upper and middle rio Tocantins basin, middle rio São Francisco basin, lower rio Jaguaribe basin and adjacent coastal basins, and middle rio Jequitinhonha.

Key to species groups of the subgenus Hypsolebias 

1a. Frontal squamation E-patterned.............................................................................................................3

1b. Frontal squamation F-patterned........................................................................ S. notatus  species group

2a(1a). Flank with unbroken conspicuous dark gray bars in females................................................................3

2b(1a). Flank with dark gray inconspicuous broken bars or spots in females................................. S. magnificus  species group

3a(2a). Anal fin long, spatula-shaped in females; no spots on caudal peduncle in females................................ ....................................................................................................................... S. flammeus  species group

3b(2a). Anal fin short, semi-circular in females; black spots on caudal peduncle in females............................. ......................................................................................................................... S. antenori  species group