Heteromycteris proboscideus (Chabanaud, 1925)
True sole
Heteromycteris proboscideus
photo by FAO

Family:  Soleidae (Soles)
Max. size:  10 cm TL (male/unsexed)
Environment:  demersal; freshwater; brackish; marine; depth range 5 - 37 m
Distribution:  Southeast Atlantic: Mauritania to south of Angola (Ref. 5304).
Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 104-113; Anal spines: 0-0; Anal soft rays: 72-74. Diagnosis: flat and asymmetric body; eyes located on right side of head, except in reversed individuals; preopercle covered by skin and opercle entirely scaled; mouth small, more or less arched and inferior; dorsal and anal fins lacking spinous rays and separated from caudal fin; dorsal fin originating on upper edge of mouth; pectoral fins absent; pelvic fins asymmetrical, the one on eyed side united to anal fin; lateral line straight along each side; body covered with ctenoid scales (Ref. 57416). Description: anterior profile widely rounded, ending in very broad, slightly prominent snout that is extended ventrally into long hook-shaped appendix; eyes small, dorsal eye widely separated from head profile; eyed side with single nostril, anterior being simple tube, left side with two close-set nostrils located above mouth, anterior represented by tube ending in slightly enlarged and rosette-shaped opening (Ref. 57416). Colouration: eyed side yellowish, mottled with brownish-black and a number of irregular, paler spots scattered over its entire surface; in some specimens there is series of brown spots at bases of dorsal and anal fins; these fins always comprise some odd blackish rays (Ref. 57416).
Biology:  A marine species also occurring in brackish waters and recorded from water practically free of salt in Cameroon (Ref. 6805).
IUCN Red List Status: Data deficient (DD); Date assessed: 15 July 2014 Ref. (130435)
Threat to humans:  harmless


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