Main identification features
- 3-5 bars
- d: front base - black spot
- anus + anal fin origin - black spot
- under tail base - dark line
Head small, flattened above; body slender; dorsal I,6; anal II,5; scales large, smooth, 28-32 along mid-side; relatively small mouth; jaw teeth conical, in bands, outer teeth larger.
Olive grey above; body with 3-5 narrow dark bars from top to mid side, sometimes 1-2 of them reach lower body; a black spot on base of first two dorsal rays; a black blotch just before anal fin and on basal half of first anal rays; a dark line along underside of tail base; iris black.
Size: grows to 5.5 cm.
Habitat: freshwater streams and brackish lagoons
Depth: 0-2 m.
Southern Mexico - Acapulco to the Gulf of Tehuantepec
Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: Northern Tropical (Mexican Province to Nicaragua + Revillagigedos).
Depth Range Max: 2 m.
Depth Range Min: 0 m.
Diet: detritus; Insects; zooplankton.
Eastern Pacific Range: Northern limit=18; Southern limit=16; Western limit=-102; Eastern limit=-94; Latitudinal range=2; Longitudinal range=8.
Egg Type: Live birth; No pelagic larva; No pelagic phase.
Feeding Group: Carnivore; Planktivore; Detritivore.
FishBase Habitat: Bentho-Pelagic.
Global Endemism: East Pacific endemic; Tropical Eastern Pacific (TEP) endemic; All species.
Habitat: Estuary; Freshwater; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Soft bottom only.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 5.5 cm.
Regional Endemism: TEP endemic; Continental TEP endemic; Mexican province endemic; Continent only; Continent; All species.
Residency: Resident.
Salinity: Brackish; Freshwater; Non Marine.
Water Column Position: Surface; Mid Water; Bottom;
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- Meek, S. E., 1904., The fresh-water fishes of Mexico north of the isthmus of Tehuantepec., Field Columbian Mus. Zool. Ser., 5:i-lxiii + 1-252.
- Wischnath, L., 1993., Atlas of livebearers of the world., T.F.H. Publications:336pp.
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