||Clupeidae (Herrings, shads, sardines, menhadens), subfamily: Dorosomatinae
||3.5 cm SL (male/unsexed)
||Africa: central part of Congo River system, around Kisangani in Democratic Republic of Congo and also Ubangui River at Bangui and upstream in Central African Republic (Ref. 188, 93833).
Dorsal spines (total): 0-0; Dorsal soft rays (total): 14-16; Anal spines: 0-0; Anal soft rays: 15-17. Diagnosis: Small, fairly slender fishes, depth around 22-24% of standard length (Ref. 188). Belly rounded, smooth, no trace of scutes before or behind pelvic fins; pelvic scute itself present, however, the tips of its lateral arms bifurcated (Ref. 188). Jaws about equal, with fine teeth; no second supra-maxilla; lower gillrakers 10 to 12 (Ref. 188). Congothrissa gossei occurs with other clupeid species, but the smoothly rounded belly, absence of spiny post-pelvic scutes and lack of a second supra-maxilla makes it unmistakable (Ref. 188).
Description: Jaws about equal; lower jaw not prominent, even a bit shorter but never longer than upper jaw (Ref. 188, 105003). Dorsal fin with 14-16 rays of which 3 unbranched rays; anal fin with 15-17 rays of which 2 unbranched rays; pectoral fin with 1 unbranched and 10-11 branched rays; pelvic fin insertion just behind dorsal fin origin, with 1 unbranched and 6-7 branched fin rays; caudal fin with 19 rays (Ref. 188, 105003). Scales large; about 20-22 scales in lateral series; 5-6 scales in transverse series (Ref. 188, 105003).
Colouration: body pale yellow, probably silvery coloured for life specimens (Ref. 105003). In preserved specimens: a trail of chromatophores is present in the middle of the flanks, especially on caudal peduncle; also dorsal side of head with fine chromatophores (Ref. 105003).
||A riverine species apparently found in the main stream of the Congo River (Ref. 188). It feeds on small shrimps, mosquito larvae and chironomid larvae (Ref. 188).
|IUCN Red List Status:
Data deficient (DD); Date assessed: 22 June 2017 Ref. (120744)
|Threat to humans:
Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.
Page created by Jen, 05.08.02,
php script by kbanasihan 06/09/2010 ,
last modified by sortiz