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🌊 Marine ⚠️ Venomous ⚡ Traumatogenic 🌡️ Tropical

Master's catfish

Hexanematichthys mastersi Ogilby, 1898
Max Length
51 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Tropical
Resilience
Medium
Vulnerability
36.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Master's catfish (Hexanematichthys mastersi), first described by Ogilby, 1898 is a large fish in the family Ariidae (order Siluriformes). Adults typically reach 51.00 cm in maximum length. It inhabits marine coastal and open-ocean environments. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. The species is venomous and potentially dangerous to handle.

Scientific Name
Hexanematichthys mastersi
Authority
Ogilby, 1898
Habitat
Marine
Climate
Tropical
Max Length
51 cm
Trophic Level
3.4
Resilience
Medium
Vulnerability
36.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Physical description for Master's catfish is currently being compiled.

🌀 Behaviour

Behavioural data for Master's catfish is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner 👄 Mouth Brooder
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; brackish; demersal. Tropical west Pacific: Papua New Guinea and Australia.

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish ⬇️ Benthic
Trophic Level
3.4±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00468 × L3.13 (TL)
Max TL
51cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
36.00/100
Moderate vulnerability
Trophic Level
3.4
Predator
Climate Zone
Tropical
Described By
Ogilby, 1898

⚠️ Venom Profile

Medical Warning: This species is venomous. Seek immediate medical attention if envenomated. Contact emergency services and follow first aid guidance below.
Venom Type
proteinaceous
Delivery
dorsal and pectoral spines with venom glands
Potency
Mild
Mortality Risk
Low
Symptom Onset
2min
Duration
12.0hrs
Antivenom
✗ Not Available
Named Toxins
crinotoxins protein toxins
Symptoms
  • pain
  • oedema
  • rare systemic effects
Affected Body Systems
peripheral nervous system
First Aid
Hot water immersion.
Medical Treatment

Wound care, analgesia.

References: Compiled from Bhide (2018), Halstead et al. (1988) and family-specific envenomation literature

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Arius mastersi Ogilby 1898 Synonym
Arius sagoroides Hardenberg 1941 Synonym
Sciades mastersi Ogilby 1898 Synonym
Tachysurus godfreyi Whitley 1941 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 2 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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