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Potamorrhaphis eigenmanni Miranda Ribeiro, 1915 |
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photo by
Porcelli, D. |
| Family: | Belonidae (Needlefishes) | |||
| Max. size: | 22.8 cm SL (male/unsexed) | |||
| Environment: | pelagic; freshwater; depth range - 0 m | |||
| Distribution: | South America: Upper Madeira River and its tributaries (Beni, Mamoré, and Guaporé); and Paraguay-Paraná River basin. | |||
| Diagnosis: | Dorsal spines (total): 0-0; Dorsal soft rays (total): 27-33; Anal spines: 0-0; Anal soft rays: 24-29; Vertebrae: 64-72. Most closely resembles P. guianensis from which it differs most markedly in lower numbers of dorsal and anal fin rays, vertebrae, and predorsal scales. Predorsal scales 77-113, mean 93.9. | |||
| Biology: | Oviparous (Ref. 205). Eggs may be found attached to objects in the water by tendrils on the egg's surface (Ref. 205). | |||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 20 August 2020 Ref. (130435) | |||
| Threat to humans: | harmless | |||