| Gobiidae (Gobies), subfamily: Gobionellinae |
| 39.7 cm SL (male/unsexed) |
|
demersal; freshwater; brackish; marine, amphidromous |
| Eastern Atlantic: Senegal to Democratic Republic of the Congo (Ref. 57403, 79590). |
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Dorsal spines (total): 7-7; Dorsal soft rays (total): 9-9; Anal spines: 1-1; Anal soft rays: 19-19; Vertebrae: 31-31. Diagnosis: lower jaw with 2 rows of caniniform teeth, a single row in upper jaw; dorsal fin 19-21 segmented rays; anal fin with 19 segmented rays; 31 vertebrae; maximum size: 500 mm TL; gape of mouth reaching to below or beyond eye; dorsal fin: VII,19-21; anal fin: I,19; pectoral fins: 17; caudal fin: 16-18 segmented rays; dorsal and anal fins connected to caudal fin by a membrane (Ref. 57403, 79590).
Coloration: preserved specimens uniformly light brown (Ref. 57403, 79590). In life: head and back bluish-grey, ventral part of body yellowish-white; fins greyish or white (Ref. 57403, 79590). |
| Occurs inshore (Ref. 4343) in brackish waters (Ref. 57403), i.e., estuaries and occasionally lagoons; sometimes ascends rivers, but rarely moves beyond the intertidal zone (Ref. 57403, 79590). Maximum size: perhaps reaching 500 mm total length (Ref. 57403, 79590). |
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Least Concern (LC); Date assessed: 20 October 2019 Ref. (130435)
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| harmless |
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Known from the Kwa River (Ref. 79590). Museum: Calabar, BMNH 1862.1.24.27-29 (paratypes of A. sagitta); BMNH 1862.1.24.26 (holotype of A. sagitta); MRAC 84-51-P-184-186. Lagos Lagoon, BMNH 1968.11.15.77. Kwa River, MRAC 89-51-P-185-186, 91-10-P-937-938 (Ref. 27974). |
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