Nannocharax signifer

Nannocharax signifer, is newly described species of African darter fish, discovered by Museum scientists, in the Ouémé River basin, Benin, West Africa.

Nannocharax signifer is distinguishable from all other Nannocharax species in West Africa by the red-orange colouration on the anterior half of the dorsal fin.

Nannocharax signifer is one of 29 known Nannocharax species

8 of which are from West Africa

Only one other Nannocharax species, Nannocharax occidentalis has been found in the Ouémé River basin.

Species detail

Other characteristics that distinguished Nannocharax signifer from other Nannocharax species

no continuous black band along the flank
multiple x-shaped body colour pattern extending on the lower half of the flank
presence of a large, dark, rounded spot from the posterior portion of the caudal peduncle to the basal portions of the middle caudal-fin rays
46-48 (usually 47) lateral line scales
4-5 scales between anus and origin of anal fin

Taxonomy

Learn the general characteristics of Nannocharax signifer in comparison to other African darter fish relatives and discover the origin of its name.
Diagnostic description

Find a more in-depth description of the appearance of Nannocharax signifer including how it differs from other African darter fish.
Habitat and distribution

Nannocharax signifer was discovered in the Ouémé basin, Benin, West Africa. Find out more about the three localities in the Ouémé basin where it was found.
References

Find out more about Nannocharax signifer, the using the reference information.