Overview

Comprehensive Description

General Description

Translated from original description in Poll (1967):

Description of the holotype. Body depth 4.3 times HL (measured between tip of snout to the posterior edge of opercular opening), 2.5 times in the standard length. Head 5.25 times as long as wide, 2.55 times longer than deep. Snout extended into tube, moderately long, strongly compressed, 8.25 times as long as deep, with chin appendage that is 14.5 times HL, 1.15 times in the eye diameter. Eye 12.35 times in length of head, 9 times in the snout length, 1.1 times in the interoculor width. Dorsal with 31 rays, its base 1.6 times in the distance that separates it from the head, 3.4 times in the distance that separates it from the tip of the snout. Longest ray 3.35 times in the HL. Anal with 35 rays, its base 1.25 times in the distance that separates it from the head. Longest ray 3.65 times HL. Caudal peduncle 2.7 times as long as deep. Lateral line scales 86, 25 / 21 between the origin of the dorsal and anal, 20 around caudal peduncle. Teeth 3 / 3. Brownish, darker on back, a large oblique band between dorsal and anal, not noticeably wider in the middle and followed by a second band behind the fins. All fins grayish.

1 ex. holotype (n° 6067) TL= 305 mm, SL=268 mm, Dundo, Luachimo River, January 10, 1960 (Maniés, collector.)

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Distribution

Range Description

Campylomormyrus tshokwe is known from the Kwango and Kasai River systems, Central Congo River basin. It is probably more widespread than currently known. The recent study of Feulner et al. 2007 confirms the presence of this species in the main channel of the Lower Congo below Pool Malebo.
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Africa: Kwango and Luachimo rivers (Kasai drainage, middle Congo River basin) in Democratic Republic of the Congo and Angola (Ref. 83752).
  • Gosse, J.-P. 1984 Mormyridae. p. 63-122. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 3203)
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Central Africa.
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Described from rapids of the Luachimo River, Dundo, Angola, Kasai Basin. See Fishbase for museum holdings and localities.

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Physical Description

Morphology

Dorsal spines (total): 0; Dorsal soft rays (total): 31; Analspines: 0; Analsoft rays: 35
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Size

Maximum size: 295 mm TL
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Max. size

29.5 cm TL (male/unsexed; (Ref. 3203))
  • Gosse, J.-P. 1984 Mormyridae. p. 63-122. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 3203)
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This is a demersal species.

Systems
  • Freshwater
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Environment

demersal; freshwater
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2010

Assessor/s
Moelants, T.

Reviewer/s
Brummett, R., Mbe Tawe, A.N., Dening Touokong, C., Reid, G.M., Snoeks, J. Staissny, M., Moelants, T., Mamonekene, V., Ndodet, B., Ifuta, S.N.B., Chilala, A., Monsembula, R., Ibala Zamba, A., Opoye Itoua, O., Pouomogne, V., Darwall, W. & Smith, K.

Contributor/s

Justification
Campylomormyrus tshokwe is known from the Kwango and Kasai River systems, Central Congo River basin. It is probably more widespread in theses basins and thus listed as Least Concern.
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Population

Population
No information available.

Population Trend
Unknown
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Threats

Major Threats
Artisanal, but very intensively diamond mining is a very important threat in small rivers in the Kasai region. The sand from digging in the river and the river beds causes sedimentation.
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Least Concern (LC)
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
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Management

Conservation Actions

Conservation Actions
None known.
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