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Campylomormyrus tamandua in Chad
Wormjawed mormyrid

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Campylomormyrus tamandua   (Günther, 1864)
Family:	Mormyridae (Elephantfishes)			picture (Catam_u1.jpg) by Hippocampus-Bildarchiv
Order:	Osteoglossiformes  (bony tongues)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Wormjawed mormyrid
Max. size:	43.0 cm SL (male/unsexed; Ref. 2915); max. published weight: 500 g (Ref. 3799)
Environment:	demersal; pH range: 5 - 7; dH range: 5
Climate:	tropical; 22 - 24°C
Global Importance:	fisheries: minor commercial; aquarium: commercial
Resilience:	Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)
Distribution:	Africa: Volta, Niger, Tchad, Shari and Congo basins. Known from the river basins of Niger, Benue, Volta and Ogun and also in the Chad basin.
Diagnosis:	Dorsal spines (total): 0-0; Dorsal soft rays (total): 28-31; Anal spines: 0-0; Anal soft rays: 31-35. Young with dark band across body between anterior end of dorsal and anal which widens in the center and surrounded by a clear zone on each side in the form of a parenthesis; first dorsal and anal ray marked with black; this coloration disappears in individuals > 20 cm; Dorsal origin behind origin of anal fin; body depth 3.9-4.7 x SL; head length 3-5 x SL; head 2.3-3.3x longer than large.
Biology:	Its electric organ discharge (EOD) is steroid-sensitive (Ref. 10763; 10764)
Threatened:	Not Evaluated, see IUCN Red List  , (Ref. 36508)
Dangerous:	harmless
Coordinator:
Main Ref:	Bigorne, R.. 1990. (Ref. 2915)
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Chad country information
Common names:	Gulwa, Gulwak, Kakago, Mamasini, Ndallégüil		Ref:  Magomna, O., 2003
Status:	native		Ref:
Salinity:	freshwater
Uses:	no uses
Country Information:	www.cia.gov/cia/publications/factbook/geos/cd.html
Occurrences:	Occurrences    Point map
Main Ref:	Gosse, J.-P., 1984
Update

More information:	Countries FAO areas Occurrences Introductions Ecosystem Ecology Diet Food items Food consumption Ration Predators Ciguatera Fish loss Common names Synonyms Pictures Sounds Reproduction Maturity Spawning Eggs Egg dev. Larvae Larval dynamics References Growth L-W relationship L-L relationship Length frequencies Recruitment Max. age & size Metabolism Morphology Morphometrics Gill area Brains Vision Collaborators Genetics Allele frequencies Heritability Strains Aquaculture Aquaculture profile Diseases Ecotoxicology Processing Speed Swim. type Stamps
	Note: No data are available if label is black .
Tools:	Biogeographic modelling | E-book | Field guide | Identification keys | Length-frequency Wizard | Life-history tool | Point map |
Internet sources:	BiOSC Point Data | CISTI | Google | GOBASE | GenBank ( genome, nucleotide ) | PubMed | Recipes | Scirus | Tree of Life | Zoological Record
	Note: use the Back button of your browser to return to FishBase.
	Entered:  Torres, Armi G.

	Ref.:				Glossary
		(e.g. 9948)				(e.g. cephalopods)
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Page created by: Eli, 20.10.03, last modified by Eli, 26.06.07