Cyphomyrus wilverthi

Cyphomyrus wilverthi (Boulenger, 1898)

Original Published Description:

Boulenger, G. A. (1898).  Matériaux pour la faune du Congo. Zoologie.–Série I. Poissons nouveaux du Congo. Deuxième Partie. Elopes, Characins, Cyprins.. Annales du Musee du Congo (Sér. Zoology). 1, 21-38, Pls. 10-19.
Languages: English


General Description

From Boulenger (1909, pp. 86-87)

Depth of body 2½ to 3 times in total length, length of head 4 3/4 to 5 times; back gibbose, with convex outline in front of dorsal and concave outline on nape. Head as long as deep, with convex upper and concave lower profile; snout short, 1/4 to 1/3 length of head; mouth terminal or subinferior, its width 1/4 to 1/3 length of head, below level of eye; chin with a strong globular swelling ; teeth extremely minute, almost hidden in the thick gums, truncate or slightly notched, 3 in upper jaw, 6 in lower;  nostrils in posterior half of the snout, posterior a little lower down than anterior, which is on a level with centre of eye; eye moderate, 2/3 to 3/4 length of snout or interorbital width. Dorsal 38-40, 1 2/3 to 1¾ times length of anal, its length equaling its distance from head. Anal 25-27, originating below 12th or 13th ray of dorsal, a little nearer base of ventral than base of caudal. Pectoral pointed, a little shorter than head, 1½ to 1 2/3 times length of ventral, extending a little beyond base of latter. Caudal scaled in its basal two-thirds, with pointed lobes. Caudal peduncle 3 times as long as deep, 4/5 length of head. 61-68 scales in lateral line, 20-21 / 20-21 in transverse series on body, 12-14 / 13-14 in transverse series between dorsal and anal, 12 round caudal peduncle. Yellowish.

Author(s): G.A. Boulenger
Rights holder(s): G.A. Boulenger


Look Alikes

Can be distinguished from Cyphomyrus psittacus and C. macrops by the wider mouth with medial notch in the upper lip.

Author(s): Sullivan, John P.
Rights holder(s): Sullivan, John P.

Ecology and Distribution


widespread in major waterways of Congo Basin.  See Fishbase for museum records and localities.

Author(s): Sullivan, John P.
Rights holder(s): Sullivan, John P.

Taxonomic Notes

Syntypes: BMNH 1898.11.12.15 (1) Matadi, 1898.11.12.16 (1) Upoto; MRAC 47 (1), 49 (1), 133 (1).


Boulenger, G. A. (1898).  Matériaux pour la faune du Congo. Poissons nouveaux du Congo. Première Partie. Mormyres. Annales du Musee du Congo (Ser. Zoology). 1, 1-20, Pls. 1-9.
Boulenger, G. A. (1899).  A revision of the genera and species of fishes of the family Mormyridae. Proceedings of the General Meetings for Scientific Business of the Zoological Society of London. 1898, 775-821.
Boulenger, G. A. (1909).  Catalogue of the Fresh-Water Fishes of Africa in the British Museum (Natural History). I, 373. London: British Museum (Natural History).
David, L., & Poll M. (1937).  Contribution à la faune ichthyologique du Congo Belge: Collections du Dr. H. Schouteden (1924-1926) et d'autres récolteurs. Annales du Musée du Congo Belge (Série 1). 3 (fasc. 5), 189–294.
Harder, W. (2000).  The Mormyridae and other Osteoglossomorpha (CD-ROM). World Biodiversity Database, CD-ROM Series. 2000, New York: Springer Verlag, ETI-UNESCO.
Myers, G. S. (1960).  The mormyrid genera Hippopotamyrus and Cyphomyrus. Stanford Ichthyological Bulletin. 7, 123-125.
Poll, M. (1939).  Les Poissons du Stanley-Pool. Annales du Musée du Congo belge. C.–Zoologie Série I.. 4, 1-60.
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