Heteromormyrus pauciradiatus
General Description (From Boulenger 1909, based on original description by Steindachner 1866.)
Depth of body equal to length of head, 3 times in total length. Head once and 1/4 as long as deep; snout rounded, 1/4 length of head; mouth small, subterminal, but situated considerably below level of eye; teeth notched; eye rather small, 2/3 length of snout; nostrils on a level with lower border of eye, midway between latter and end of the snout. Dorsal 18, originating a little posterior to origin of anal, its length 3 times in its distance from head. Anal 23, a little nearer base of caudal than base of ventral. Pectoral shorter than head, hardly reaching base of ventral. Caudal with rounded lobes. Caudal peduncle once and 1/2 as long as deep, 1/2 length of head. 70 scales in lateral line, about 20 round caudal peduncle.
Size: type = 100 mm TL. This specimen appears to be a juvenile.
EOD and electric organ: unknown.
Distribution: Type locality only given as "Angola," but given date of collection it can be reasonably inferred it was collected near Luanda in Kwanza or Bengo River basins. Non-type specimen identified as this species by Boulenger from Bengo R. at Cabiri, BMNH 1910.11.28.44.
Extremely deep caudal peduncle is notable.
No sequence data.
May be related to the "Hippopotamyrus ansorgii-group."
Type locality in Angola uncertain. See record in FishBase.