Aphyosemion erythron Sonnenberg 2007



A.erythron GEMHS 00 / 41. Male left, female right. Photo courtesy of Werner Eigelshofen.

Meaning of Name

After the Greek erythros. Refers to the rows of red dots along body & fins.
First Description

Sonnenberg R. 2007.

Two new species of Chromaphyosemion (Cyprinodontiformes: Nothobranchiidae) from the coastal plain of Equatorial Guinea.
[Chromaphyosemion ecucuense sp. nov.] [Chromaphyosemion erythron sp. nov.]

Ichthyol. Explor.Freshwaters, Vol. 18, No. 4, pp. 359-373, 7 figs, 4 tabs, December 2007.
Size

Male - 24·5 mm SL (holotype). In aquaria - males 25 mm, females 20 mm.
Meristics

D = 11-13, A = 12-15, ll = 23-26 + 2-3.
Karyotype
  • GEMHS 41 - 2n=36 - Völker et al
  • Scheel's BI strain - 2n=34 - Scheel 1974
Sub-Genus

Chromaphyosemion
Group

Synonyms
  • Aphyosemion bivittatum (non Lönnberg 1895) Roman 1971
  • Aphyosemion bitaeniatum (non Ahl 1924) Scheel 1990
  • Aphyosemion splendopleure (non Brüning 1929) Huber 2000
  • Aphyosemion aff.splendopleure Huber 2000
  • Chromaphyosemion sp. Rio Muni Pohlmann 2006

Populations

  • GEMHS 00 / 35 - Rio Aye Basin
  • GEMHS 00 / 38 - 1km east of Bama
  • GEMHS 00 / 41 - Rio Ecucu Basin

GEMHS 00 / 35 - Collected by Malumbres et al 9th July 2000. Near Nomenam. Rio Aye basin.
Collected 9th July 2000. N 01º 17,182'; E 009º 36,130'. Altitude 29 metres. Main Drainage system: Rio Aye (subsystem: unknown).
Aphyosemion ahli (?). A.erythron

GEMHS 00 / 38 - Collected 10th July 2000. Located 1 km east of Bama. Altitude 42 metres. Main Drainage system: Rio Movo Ecucu (subsystem: unknown). A.erythron.

GEMHS 00 / 41 - Collected by Malumbres et al 11th July 2000. Two km east of the village Ecurya, Rio Ecucu basin.
Collected 10th July 2000. N 01º 45,195'; E 009º 47,876'. Altitude 25 metres. Main Drainage system: Rio Movo Ecucu (subsystem: unknown). A.erythron

  • 18 km south of Bata - Collected by Scheel.
  • Miyogo (river ?) - A tributary of the River (Rio) Monyoga (part of the Rio Ecucu drainage). Collected by Roman.
  • 4 km south of the new bridge over the Rio Benito in the Rio Uolo drainage.
Type Locality

Distribution

Habitat

Distinguishing Characteristics Distinguished from it's neighbours - A.kouamense, A.melanogaster, A.ecucuense & most forms of A.malumbresi by a thin red submarginal band in the anal fin of males.
Males have a light blue to blue/grey colouration on sides.
Colour/Pattern Variability
History

Holotype collected 18th July 1968 on the road from Senye - Izaguirre (between Bisum & Avuenam), Rio Muni, Equatorial Guinea.
Breeding Notes

Diameter of Egg
Remarks