Aphyosemion decorsei (Pellegrin 1904)

RCA 91 / 3 taken at the 2001 BKA convention
through a rather scratched plastic tank.

Meaning of Name

After Dr. E.Decorse who originally collected this species with Auguste Chevalier.

First Description

Pellegrin J. 1904.

Cyprinodontidés nouveaux du Congo et de l'Oubanghi.

Bulletin de Muséum National d'Histoire Naturelle 10 (5), p 223.

Size

5 cm

Meristics

D = 8-9, A = 13-14, ll =25-28 (Pellegrin 1904)(Scheel examined these preserved fish & found the lateral line scale count to be 28-32 with a mean number of 30).

Karyotype

 

Sub-Genus

Aphyosemion

Group

elegans

Synonyms
  • Haplochilus Decorsei Pellegrin 1904
  • Haplochilus decorseii Pellegrin 1904
  • Haplochilus decorsii Boulenger 1911
  • Panchax decorsei Ahl 1924
  • Epiplatys decorsei Poll 1951
  • Aphyosemion decorsei Scheel 1968
Populations
  • Bangui KCF 5
  • Bombala
  • Ignoli
  • Kapou RCA 91 / 1
  • Mondimbi
  • Mobaye (Central African Republic)
  • Yaloké (Central African Republic)
  • A.affinis decorsei
  • HZ 85 / 8
  • RCA 82 / 3
  • RCA 91 / 1
  • RCA 91 / 3

RCA 91 / 1

A.decorsei
Photo courtesy of Ed Pürzl

A.decorsei ?
Photo courtesy of Ed Pürzl.

Form in circulation in the '70's in the BKA under the name A.schoutedeni.
BKA photo

 

RCA 91 / 1 male
Photo courtesy of Adam Rychlik

RCA 91 / 1 female
Photo courtesy of Adam Rychlik

Bangui circulating in the US as A.sp.Bangui around 1980.
Photo: Courtesy of Lennie MacKowiak

KCF 5 Bangui
Photo: Courtesy of Monty Lehmann

KCF 5
Photo courtesy of Maurice Chauche & the KCF website.

Kapou RCA 91/1. http://home8.swipnet.se/%7Ew-86183/decorsei.htm Alf & Anitas site.

Type Locality

Bessou (north of the Oubanghi River)(modern maps do not show this location apart from a Bessou River of southern Central African Republic.).

Distribution

The middle Oubanghi River drainage system of southern Central African Republic. Their range is also thought to extend into northern Congo & northern Zaire.

The type locality appears to be seperated from the Central Congo drainage by rapids.

Habitat

Rainforested areas where they inhabit small streams, brooks & swampy areas.

Distinguishing Characteristics  
Colour/Pattern Variability Low
History

Pellegrin based his original description on 5 specimens collected by Chevalier & Decorse at Bessou (Oubanghi?) which is situated in the northern area of the Central Congo drainage. He considered them closest to Aplocheilichthys spilauchen.
According to Poll in an article written in 1952 Bessou is 300 km east of Bangui.

In 1924 Myers reservedly placed them in Aphyosemion whereas Poll in 1952 put them in Epiplatys.

Breeding Notes

Little information available. Thought to be similar to A.christyi.

Diameter of Egg  
Remarks