The EOD of Marcusenius fuscus is at present unknown.
to 199 mm SL
Marcusenius fuscus appears to be distributed in the central Congo basin, including the Tshuapa and Kasai. See Fishbase for museum records and localities.
Translated from original description by J. Pellegrin (1901)
Body depth contained 4 times in length (minus the caudal), the length of the head 4½ times in length. HL noticeably longer than its depth, dorsal profile rounded, convex. Snout a little less than 1/3 HL. Mouth situated at the level of the ventral border of eye, its width slightly inferior to the snout length. Teeth somewhat scalloped, 5 / 6. Chin with moderately swelling. Eye diameter ½ snout length, 1/7 HL. Dorsal fin composed of 24 or 25 rays beginning above the 6th anal ray; the length of its base equal to a little more than ½ the distance that separates it from the head. Anal fin with 29 to 32 rays, its base about equal to the distance that separates its first ray from the origin of the pelvic fin. The rounded pectoral fin is 2/3 HL and extends beyond the base of the pelvic. Pelvic fin a little more than ½ length of the pectoral. Caudal mostly covered with scales, its lobes elongate and rounded. Caudal peduncle is a little more than 2 times longer than deep, 2/3 of HL, with 8 circumpeduncular scales. Lateral line with 57 scales. Uniformly chocolate brown.
D. 24-25, A. 29-32, P. 10, V.6, L.lat. 57, L. transv. 10 / 14
No. 90 — 8 and 9. Coll. Mus. Congo Thollon.
Total length: 225 and 215 mm.
This species is similar to Gnathonemus leopoldianus Boulenger from Lac Leopold II, but has only 8 scales around the caudal peduncle, similar to G. moorii Günther of the Ogooué and Lower Congo from which it differs by its longer body and more numerous scales (57 instead of 43-49) and similar to G. schilthuisiae Boulenger of Lac Leopold II from which it differs by its shorter dorsal and anal fins, its barely visible chin swelling, and its smaller eye and coloration.
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | Sullivan, John P., Sullivan, John P., Pellegrin, J., Africhthy |
| Source | http://mormyrids.lifedesks.org/pages/2110 |
Least Concern (LC)
| 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=10893 |
Marcusenius fuscus is known from Pool Malebo (Stanley Pool) and from the Central Congo River basin. It is not known from the central and southern regions of the Democratic Republic of the Congo though.
| 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/182588 |
Conservation Actions
| 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/182588 |
Africa: Pool Malebo, middle Congo River, Kasai and Ruki in Democratic Republic of the Congo (Ref. 27691).
| 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=10893 |
Marcusenius fuscus appears to be distributed in the central Congo basin, including the Tshuapa and Kasai. See Fishbase for museum records and localities.
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | Sullivan, John P., Sullivan, John P., Africhthy |
| Source | http://mormyrids.lifedesks.org/pages/2110 |
Central Africa.
to 199 mm SL
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | Sullivan, John P., Sullivan, John P., Africhthy |
| Source | http://mormyrids.lifedesks.org/pages/2110 |
Maximum size: 199 mm SL
19.9 cm SL (male/unsexed; (Ref. 27691))
| 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=10893 |
