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Opisthopterus effulgens (Regan, 1903) Vaqueira longfin herring |
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photo by
FAO |
| Family: | Pristigasteridae (Pristigasterids) | |||
| Max. size: | 20.5 cm SL (male/unsexed) | |||
| Environment: | pelagic-neritic; freshwater; brackish; marine | |||
| Distribution: | Eastern Pacific: known only from the Río Vaqueira, northwest Ecuador. | |||
| Diagnosis: | Dorsal spines (total): 0-0; Anal spines: 0-0; Anal soft rays: 50. Belly with about 29 scutes. Lower jaw projecting, mouth pointing obliquely upward; no hypo-maxilla. Pectoral fin a little longer than head; dorsal fin origin nearer to caudal fin base than to vertical from pectoral fin base by about 2 eye diameters (or behind midpoint of body by about 3 eye diameters); anal fin long, its origin much nearer to snout tip than to caudal fin base. | |||
| Biology: | Either living in rivers or entering rivers from the sea (Ref. 9336). | |||
| IUCN Red List Status: | Data deficient (DD); Date assessed: 29 June 2018 Ref. (130435) | |||
| Threat to humans: | harmless | |||