Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; freshwater; brackish; demersal. Tropical; 9°N - 5°S
Eastern Pacific: Panama canal to northern Peru.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 43.0 cm TL male/unsexed; (Ref. 55763); common length : 20.0 cm TL male/unsexed; (Ref. 55763)
Body depressed and moderately elongated; head wide and depressed; mouth large; eyes dorsal; gill openings located at back of the head; dorsal with 3 spines; pelvic fins sub-jugular; dorsal and anal fins free from caudal fin; anal fin with 21 to 25 rays; lateral lines two, fewer than 52 pores in the upper line and fewer than 48 in the lower; photophores lacking around the anus; body reddish brown, with some darker dorsal-lateral spots along the second dorsal fin and numerous blotches, some brown and some white, especially on the head (Ref. 55763).
Body shape (shape guide): elongated.
Sometimes enters fresh water (Ref. 9277).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Collette, B.B., 1995. Batrachoididae. Peje-sapos, sapos. p. 910-918. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para lo Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9277)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Fisheries: minor commercial
Tools
Special reports
Download XML
Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00468 (0.00180 - 0.01212), b=3.12 (2.90 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.6 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (33 of 100).
🛈