Refers to the Mamfe plains.

Radda A.C. 1974. (Aphyosemion gardneri mamfense).

Studien zur Cytogenetik, Taxonomie und Verbreitung der 'Gardneri-Gruppe' der Gattung Aphyosemion (Osteichthys, Cyprinodontidae) aus dem südlichen Westkamerun.

Jahrbuch des Naturhistorisches Museums der Stadt Bern 5: p 6-8, figure 3.

48.5 mm (according to the original description).

D = 13-15, A = 15-16, D/A = +5-6, ll = 32-33 +3 (Radda 1974).

n = 20, A = 34 (Radda 1974)
n = 19 - Ossing (Scheel ROTOW II, 1990).

Paraphyosemion

gardneri

• Aphyosemion subspecies No.1 Radda 1973
• Aphyosemion gardneri mamfense Wright 1973 (nomen nudum)
• Aphyosemion gardneri mamfense Radda 1974
• Aphyosemion obuduense mamfense Kottelat 1976
• Aphyosemion mamfense Huber 1977
• Fundulopanchax gardneri mamfensis Lazara 1984
• Aphyosemion (Paraphyosemion) gardneri mamfense Huber 1994

Population

• Bachou-Akagbé
• Bessongabang
• Ebinsi HAH 98
• Faishang (sometimes spelt Faintschang or
  Fainchang)
• Mamfé
• Mamfe Mile 5 CB3SR 07 / 19
• Mfuni (Mfune ?) - CSK 95/5
• N'Debaya
• Nechemba
• N'Debaya
• Nguti to Mamfe road.
• Ossing
• Rosary Hill
• Satom - CVGPM 15 / 9
• Talangaye
• Ugep
• Uke
• CB3SR 07 / 19
• CLMM 95 / 7
  
• CSK 95/4 (Eyang)
• CSK 95/5 (Mfuni)
• CSK 95/6 (Talangaye) 3 km southeast of Ossing.
• CSK 95/26
• GPE 90/10

Mfuni - Clear anal fin with feint dark outer rim . Lower submarginal band in caudal fin lacks integrity.
The Mfuni CSK 95 / 5 Tabotmba River population has a heavy spotted anal with no outer marginal band.

N'Debaya - Scheel reported this population in ROTOW II as having 2 red bands in the caudal fin.

Rosary Hill - Seen on Alf & Anita Persson's site 2006. I can find no information on this one - possibly a Catholic Mission.

Satom - Collected in 2015 (CVGPM 15 / 9). Can be split into yellow & blue phases.

3 km south of Bachou-Akagbé on the road to Manyemen. The biotope was near the mouth of a brook which emptied into a larger river.

Restricted to the rainforest of the Mamfé plains in the upper Cross River drainage system.

Click link to map of gardneri distribution. This comprises all populations I can find on maps. You can zoom in but markers are not accurate to the exact collection spot, just the area which builds up a picture of distribution. map

Shallow areas of pools & brooks.
Climate chart for Mamfe.

In early collections of Fp.nigerianus Scheel became aware of a different looking fish in the east of Nigeria on the Nigeria/Cameroon border east of the Lower Cross River. These were referred to as 'A.gardneri from Ndian River'. This is mamfense country.
Collected by Scheel in 1966 from Eyomojok.
First reported introduction to the UK was in the early part of 1973 when they were imported as an unknown type of gardneri. Later Radda established its true identity.

In 1970 a blue phase mamfense was found near Besongabang. This fish was described as being heavily spotted in the body & un-paired fins.

The early part of the '70's saw the introduction & distribution of a fish called Aphyosemion 'Mini-Killie'. They were reported to have been collected by Mr. Kluge of Hamburg in Nigeria. See also Eymojok & Fp.gardneri gardneri.

First introduction of the fish known as 'mamfense' into the BKA was probably in 1973.

In November/December 1998 Jack Heller, Nevin Aspinwall & Tomas Heller of the AKA collected them at Ebinsi, Cameroon. These were distributed as HAH 98/Ebinsi.These were still around at the 2000 AKA Convention.

When first introduced into the UK they proved to be very reluctant spawners with best results coming from pairs which layed eggs in a sand substrate.
Over the years they have become easier to spawn using bottom mops or peat fibre.
The Ossing I kept were not easy although some eggs were laid on bottom mops.
Some reports have suggested the growth rate of this sub-species to be slow.

1.2 mm.

This subspecies mainly comprises blue phenotypes but Ossing has been seen as yellow & blue.