Chiloglanis polypogon Roberts, 1989
Chiloglanis polypogon
photo by Ng, H.H.

Family:  Mochokidae (Squeakers or upside-down catfishes), subfamily: Chiloglanidinae
Max. size:  5.49 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater,
Distribution:  Africa: Cross River in Cameroon (Ref. 7362, 13094, 57223, 81251). Report from Nigeria (Ref. 31256) unconfirmed (Ref. 57223, 81251) and questionable.
Diagnosis:  Dorsal spines (total): 1; Dorsal soft rays (total): 5-6; Vertebrae: 30-32. Diagnosis: labial disk rather small (although larger than that of C. benuensis), transversally oval, provided with thick papillae and very long barbels; 3-5 auxiliary barbels on either side of lower lip and often another one at inner side of main outer mandibular barbel; premaxillary teeth well developed and arranged in 3-4 irregular rows; mandibular teeth large, numbering 3+3 to 4+4; adipose fin long, beginning distinctly ahead of anal-fin origin; caudal peduncle not very elongate, moderately slender; caudal fin slightly notched/moderately forked, lower lobe longer than upper; eye large; largest specimens have epidermic tubercles arranged in longitudinal lines on top of head; no obvious sexual dimorphism noted (Ref. 57223, 81251). Pupil of eye with flattened upper margin and contractile in living specimens (Ref. 81251). Coloration: fresh specimens with dark vertical bars on sides, separated by paler areas; ventral region entirely pink or salmon-coloured (Ref. 57223, 81251).
Biology:  Oviparous (Ref. 205).
IUCN Red List Status: Near Threatened (NT); Date assessed: 30 November 2019 (B1ab(iii)) Ref. (130435)
Threat to humans:  harmless
Country info:  Reported from the Cross River in Nigeria (Ref. 31256), but explicitely confined to the Camerounian portion of the Cross in Ref. 13094 and Ref. 57223 and the upper Cross in Ref. 81251.


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