IUCN threat status:

Vulnerable (VU)

Comprehensive Description

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General Description

The only Marcusenius from Lower Guinea with 12 circumpeduncular scales, fewer than 70 scales on lateral line, fewer than 22 dorsal rays, and fewer than 33 anal rays. Depth of body 21-24% SL; head elongate, reaching 24-27% SL. Head depth 66-73% of its length. Snout conical in shape and elongate, 25-33% HL. Mouth terminal, submental swelling pronounced and extending well beyond the end of the upper jaw. Teeth bicuspid, six (sometimes five) in upper jaw, eight in lower. Eye diameter 28-46% of the length of the snout. Dorsal fin with 20-21 rays, anal fin with 29-32 rays. Dorsal originates well behind the anal, typically over the 14th-16th anal ray. Caudal peduncle length 15-19% SL. Caudal peduncle depth 5.6-6.4% SL. Caudal fin small with obtusely pointed lobes. 64-66 scales in the lateral line, 12 circumpeduncular scales. Uniform dark chocolate-brown coloration overall, fins darkly pigmented.


Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© Hopkins, Carl D.

Source: Africhthy

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