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🌊 Marine Least Concern ⚠️ Venomous ⚡ Traumatogenic 🌡️ Deep-water

Tasselled wobbegong

Eucrossorhinus dasypogon Bleeker, 1867
Max Length
366 cm
Max Weight
-
Lifespan
-
Trophic Level
4
Depth
2–50 m
Climate
Deep-water
Resilience
Low
Vulnerability
87.00/100
Typical Length
180 cm
Depth Zone
deep-water

📖 Overview

A little-known shark found on the continental shelf and offshore reefs . Probably feeds on bottom fishes and invertebrates ; also known to eat nocturnal teleost fishes such as squirrelfish and soldierfish (Holocentridae) and sweepers (Pempheridae) . Ovoviviparous . Might bite in self-defense or when mistaking a human foot for its usual prey . Its tough skin sometimes used for leather . The maximum length of 366 cm TL reported for this species is uncertain .

Scientific Name
Eucrossorhinus dasypogon
Authority
Bleeker, 1867
Habitat
Marine
Climate
Deep-water
Body Shape
Elongated
IUCN Status
LC
Max Length
366 cm
Depth Range
2–50 m
Latitude
23°S – 1°N
Trophic Level
4
Resilience
Low
Vulnerability
87.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Genus
Eucrossorhinus
Eucrossorhinus
Species
Tasselled wobbegong
Eucrossorhinus dasypogon

🐟 Physical Description

Dorsal spines (total): 0; Anal spines: 0. Body with a reticular pattern of narrow dark lines . Caudal fin with its upper lobe hardly elevated above the body axis, with a strong terminal lobe and subterminal notch but no ventral lobe .: elongated.

🌀 Behaviour

Behavioural data for Tasselled wobbegong is currently being reviewed.

🦐 Diet

small fish
crustaceans
cephalopods

🥚 Reproduction

🐣 Ovoviviparous

Ovoviviparous, embryos feed solely on yolk .

🌍 Habitat & Distribution

Marine; reef-associated; depth range 2 - 50 m . Deep-water; 1°N - 23°S, 115°E - 155°E West Pacific: eastern Indonesia, Papua New Guinea, and northern Australia (including Barrow Island, Western Australia).

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water 🪸 Reef Associated
Trophic Level
4±0.6
🌙 Nocturnal
Food Items

bottom fishes and invertebrates (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
366cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2023

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
87.00/100
Very High vulnerability
Trophic Level
4
Apex / Top predator
Body Shape
Elongated
Climate Zone
Deep-water
Latitude Range
1°N – 23°S
Described By
Bleeker, 1867

⚠️ 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 neurotoxin
Delivery
dorsal, anal, and pelvic fin spines
Potency
Severe
Mortality Risk
Low
Symptom Onset
5min
Duration
24.0hrs
Antivenom
✗ Not Available
Named Toxins
high-molecular-weight protein (Stonustoxin analogue) acetylcholine
Symptoms
  • immediate intense pain
  • swelling
  • erythema
  • occasional nausea and weakness
Affected Body Systems
peripheral nervous system cardiovascular
First Aid
Immerse affected area in hot water (45 C, tolerable) for 30-90 minutes to denature toxin. Do not apply ice.
Medical Treatment

Analgesia; wound care; tetanus prophylaxis; severe cases may require monitoring for systemic effects.

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

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