[freshwater] Order Osteoglossiformes Family Mormyridae(Elephantfishes) Elephant-nose fish Campylomormyrus elephas(Boulenger, 1898). 40cm TL Dorsal spines (total): 0; Dorsal soft rays (total): 31; Anal spines: 0; Anal soft rays: 34
Distribution; Africa/Congo River basin in Democratic Republic of the Congo and Angola. Reports from the Chad basin or Benue are unconfirmed and questionable, possibly referring to Campylomormyrus tamandua(Worm-jawed elephantfish). General; The Elephant-nose fish(or Elephant-trunk fish) is a weakly electric fish which generates an electric field with its electric organ and then processes the returns from its electroreceptors to locate nearby objects. Depth of body 3 to 4 times in total length, length of head 4 to 5 times. Upper profile of head descending in a very strong curve; nosemuch prolonged, tubiform, strongly compressed, directed downwards, its length exceeding postocular part of head, 3 to 4 times its least depth, which is 1½ diameter of eye; lower jaw with a short, wart-like, cylindrical dermal appendage as long as or a little shorter than diameter of eye; teeth conical, 3 in upper jaw, 4 in lower. Dorsal 31-35, originating above 5th ray of anal, its length 1 1/3 to 1 2/5 times its distance from head. Anal 33-37, equally distant from base of ventral and from base of caudal. Pectoral pointed, little shorter than head, extending to middle or second third of ventral, and twice as long as latter. Caudal scaled, with pointed lobes. Caudal peduncle 3 times as long as deep, as long as head or a little shorter. 70-80 scales in lateral line, 14-15 / 18-22 in transverse series on body, 13-18 / 10-16 in transverse series between dorsal and anal, 12 round caudal peduncle. Brownish above; young with a black lateral band edged with yellowish, expanding into a rhomboidal marking between dorsal and anal. Total length 40cm.
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