New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

💧 Freshwater 🌡️ Tropical

Priocharax Phasma

Priocharax phasma Mattox, Lima, Britz, Souza & Oliveira, 2024
Max Length
1.4 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Priocharax Phasma (Priocharax phasma) is a ray-finned fish of the family Acestrorhamphidae. It inhabits freshwater waters. This species can reach a maximum total length of 1.4 cm. With a trophic level of 3, it is a low-level carnivore, feeding on invertebrates and small organisms.

Scientific Name
Priocharax phasma
Authority
Mattox, Lima, Britz, Souza & Oliveira, 2024
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
Max Length
1.4 cm
Trophic Level
3
Resilience
High
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 8 - 10; Anal soft rays: 21 - 27; Vertebrae: 32 - 34. This species is distinguished from its congeners by the following set of characters: complete lack of pigmentation on the body; maxillary teeth in slightly irregular series 13-21; dentary teeth 18-26; single postcleithrum present; two infraorbitals present, Ios 1+2; anal-fin rays 21-26; branched pelvic-fin rays 5; claustrum absent; adipose fin absent; anal-fin base 32-38; caudal peduncle 13-19 .: elongated; Cross section: compressed.

🌀 Behaviour

Behavioural data for Priocharax Phasma is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
1.4cm
Dorsal Rays
9
Anal Rays
24
Vertebrae
33

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Mattox, Lima, Britz, Souza & Oliveira, 2024

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Priocharax Phasma ↗
Suggest an Edit

Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.

Link to a scientific paper, FishBase, or other authoritative source
Report an Issue

Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.