Potamorrhaphis eigenmanni
Potamorrhaphis eigenmanni Miranda Ribeiro, 1915
Potamorrhaphis eigenmanni
photo by Porcelli, D.


Deprecated: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/FieldGuide/FieldGuideSummary.php on line 600

Deprecated: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/FieldGuide/FieldGuideSummary.php on line 616
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


Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.