Usumacinta sea catfish
📖 Overview
Adults occur only in freshwater, preferring the main channel of medium to large rivers . Migratory behaviour is undetermined .
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 1; Dorsal soft rays (total): 7; Anal soft rays: 19 - 23. Distinguished from other freshwater ariids occurring in Mesoamerica by the following combination of characters: presence of accessory tooth patches on palate; premaxillary tooth band length 2.4-2.9 in its width; ; snout length 1.4-1.8 in postorbital length; lateral gill rakers on first gill arch 17-20 (mode 19); mesial gill rakers on first two gill arches well developed; accessory palatal patches with numerous pointed-conical teeth; premaxillary maxillary barbel not extending behind gill membrane; and dorsomedian fleshy groove on head absent .
🌀 Behaviour
Behavioural data for Usumacinta sea catfish is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Freshwater; demersal. Tropical Central America: endemic to the Río Usumacinta basin in Guatemala and Mexico.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
⚠️ Venom Profile
- pain
- oedema
- rare systemic effects
Wound care, analgesia.
References: Compiled from Bhide (2018), Halstead et al. (1988) and family-specific envenomation literature
🔍 Similar Species
👥 Community & Contribute
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