Description:Dorsal spines (total): 0; Dorsal soft rays (total):
8; Anal spines: 0; Anal soft rays: 9 - 12. Doumea
chappuisi is distinguished from its congeners,
except D. reidi and D. stilicauda,
by having the dorsolateral and ventrolateral vertebral
processes extending through the skin to form longitudinal
bony ridges from the region of the base of adipose
fin posteriorly to the caudal-fin base and from slightly
posterior of the pelvic-fin origin to the caudal-fin
base; exposed processes are in the shape of longitudinal
bars with slightly corrugated surfaces that form irregular
longitudinal ridges. It differs from D. reidi
by a shorter caudal-peduncle length, 22-29% of standard
length vs. 31%; the posterior extent of the adpressed
pelvic fin in specimens over 90 mm standard length
falling short of the anterior limit of the anal fin,
vs. extending distinctly beyond that point; the anterior
extent of the exposed vertebral processes along the
ventral surface of the body extending to slightly
posterior of pelvic-fin origin, vs. extending to the
area lateral to the anal-fin base; and the uniform
pigmentation pattern of the dorsal surface of the
unbranched rays of the pectoral and pelvic fins, vs.
with series of irregular dark spots against a lighter
background. It differs from D. stilicauda
in the longer predorsal length, 32-37% of standard
length vs. 27-30%; longer head length, 18% of standard
length vs. 15-17%; smaller caudal-peduncle length,
22-29% of standard length vs. 35-41%; and caudal-peduncle
depth 7.3-14.5 times in caudal-peduncle length, vs.
19.6-25.8 times. Habitat: The nine
species in this genera prefer the upper courses of
the rivers as they are rheophilic (an organism that
prefers to live in fast moving water). Etymology:
Named in honour of French-born Swiss zoologist and
biospeleologist Pierre-Alfred Chappuis (1891-1960),
who collected the type specimen. Remarks:
Doumea chappuisi occurs in several coastal
basins in Guinea-Bissau, Guinea, Liberia and Côte
d'Ivoire. No major, widespread threats have been identified.
This catfish is therefore listed as Least Concern
Liberia and Côte d’Ivoire; Cavally, Nuon,
St. Paul, and Koumba River systems. Type locality:
Danané (Côte d’Ivoire).
2020. Doumea chappuisi. The IUCN Red List of Threatened
Ferraris, C.J. Jr., 2007. Checklist of catfishes,
recent and fossil (Osteichthyes: Siluriformes), and
catalogue of siluriform primary types. Zootaxa 1418:1-628. Ferraris, C.J., P. Skelton and R.P. Vari,
2010. Species of the Doumea chappuisi complex (Siluriformes,
Amphiliidae) with the descriptions of new species
from the upper Sanaga River and Nyong River basins.
Copeia 2010(4):705-715. Froese, R. and D. Pauly.
Editors. 2023. FishBase. World Wide Web electronic
publication. www.fishbase.org, version.