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Mormyridae
Mormyrops (Oxymormyrus) zanclirostris (Günther, 1867)
EOL Text
Africa: Ntem, Ogowe, Nyanga and Kouilou rivers (Ref. 81635). Also in the lower (Ref. 1880) and middle (Ref. 3203) Congo River basin.
| License | http://creativecommons.org/licenses/by-nc/3.0/ |
| Rights holder/Author | Pascualita Sa-a, FishBase |
| Source | http://www.fishbase.org/summary/SpeciesSummary.php?id=10952 |
Western and central Africa.
In Lower Guinea found in the Ntem River, throughout the Ogowe basin, including the Ivindo River, the Nyanga River and in the Kouilou River. Elsewhere, known from the Congo River basin, where it overlaps in distribution with M. boulengeri. See FishBase for museum records and localities. Common in a wide range of habitats, from deepest parts of rivers to smaller streams and swamps. Isolated individuals are often found along the banks of small streams during the rainy season floods.
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | Sullivan, John P., Sullivan, John P., Hopkins, Carl D., Africhthy |
| Source | http://mormyrids.lifedesks.org/pages/2215 |
27.0 cm TL (male/unsexed; (Ref. 1878))
| License | http://creativecommons.org/licenses/by-nc/3.0/ |
| Rights holder/Author | Pascualita Sa-a, FishBase |
| Source | http://www.fishbase.org/summary/SpeciesSummary.php?id=10952 |
Habitat and Ecology
Systems
- Freshwater
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | © International Union for Conservation of Nature and Natural Resources |
| Source | http://www.iucnredlist.org/apps/redlist/details/181915 |
demersal; freshwater
| License | http://creativecommons.org/licenses/by-nc/3.0/ |
| Rights holder/Author | Pascualita Sa-a, FishBase |
| Source | http://www.fishbase.org/summary/SpeciesSummary.php?id=10952 |
The EOD waveform has three phases, beginning with a small head-positive prepulse of small amplitude, P0, followed by a head-negative phase, P1, ending with a head-positive phase, P2. The total duration is about 1 msec. The polarity of this EOD is ‘inverted’ compared to most other mormyrids. The cause of the inversion is that the electrocytes have penetrating stalks innervated on the posterior side (Type Pp) rather than the anterior side (Type Pa), and this switches the polarity of each phase of the EOD waveform.
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | Sullivan, John P., Sullivan, John P., Hopkins, Carl D., Africhthy |
| Source | http://mormyrids.lifedesks.org/pages/2215 |
Red List Criteria
Year Assessed
Assessor/s
Reviewer/s
Contributor/s
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | © International Union for Conservation of Nature and Natural Resources |
| Source | http://www.iucnredlist.org/apps/redlist/details/181915 |
Population
Population Trend
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | © International Union for Conservation of Nature and Natural Resources |
| Source | http://www.iucnredlist.org/apps/redlist/details/181915 |
Major Threats
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | © International Union for Conservation of Nature and Natural Resources |
| Source | http://www.iucnredlist.org/apps/redlist/details/181915 |