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Mormyridae
Campylomormyrus rhynchophorus (Boulenger 1898)
EOL Text
The Double-nosed Elephant Nose (Campylomormyrus rhynchophorus) is a freshwater tropical fish in the Mormyridae family. Found in Angola, Cameroon and the Democratic Republic of Congo, it is a gregarious, nocturnal fish, with a distinctive extended "nose" at a sharp downward angle. Like all mormyrids, is also has an electrical organ in its caudal peduncle.
License | http://creativecommons.org/publicdomain/mark/1.0/ |
Rights holder/Author | Bob Corrigan, Bob Corrigan |
Source | No source database. |
From Boulenger 1909, pp. 121-122
Depth of body equal to length of head, 3 4/5 to 4 times in total length. Upper profile of head descending in a strong curve; snout much prolonged, tubiform, strongly compressed, curved downwards, its length 2 to 2 1/3 times postocular part of head, and 3 1/2 to 7 times its least depth, which nearly equals diameter of eye; latter 2/3 interorbital width; lower jaw with a compressed dermal appendage about as long as eye; teeth conical, 5 in upper jaw, 4 in lower. Dorsal 27–31, originating above 6th or 7th ray of anal, its length 1 1/2 to 1 3/4 times in its distance from head. Anal 31–35, nearly equally distant from base of ventral and base of caudal. Pectoral obtusely pointed, 1/2 length of head, ventral 1/3 or rather less; pectoral extending beyond base of ventral. Caudal scaled, with pointed lobes. Caudal peduncle 3 to 3 1/2 times as long as deep, 1/2 to 2/3 length of head. 75–85 scales in lateral line, 18–21 / 30–32 in transverse series on body, 20–23 / 20–23 in transverse series between dorsal and anal, 16 or 18 around caudal peduncle. Brownish, with a rather indistinct darker vertical band between dorsal and anal.
Total length 380 mm.
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | Sullivan, John P., G.A. Boulenger, Africhthy |
Source | http://mormyrids.lifedesks.org/pages/2051 |
Possesses electro receptors over the entire head and on the ventral and dorsal regions of the body, but absent from the side and the caudal peduncle where the electric organ is located (Ref. 10011).
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=10854 |
Campylomormyrus rhynchophorus is known from throughout the Congo River basin.
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/182475 |
Africa: Congo River basin in Cameroon, Democratic Republic of the Congo and Angola (Ref. 83752).
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=10854 |
Central Africa.
Dorsal spines (total): 0; Dorsal soft rays (total): 31 - 34; Analspines: 0; Analsoft rays: 33 - 36
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=10854 |
Maximum size: 220 mm TL
22.0 cm TL (male/unsexed; (Ref. 3203))
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=10854 |
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/182475 |