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🌊 Marine Least Concern ⚠️ Venomous 🐠 Aquarium ⚡ Poisonous to eat 🌡️ Tropical

Taileyed goby

Parachaeturichthys polynema Bleeker, 1853
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Max Length
15 cm
Max Weight
-
Lifespan
-
Trophic Level
3.1
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
25.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Parachaeturichthys spp. Inhabit deep water . Rarely enters estuaries . Captured by trawls over mud bottom . Found to contain tetrodotoxin (TTX) and anhydrotetrodotoxin (anh-TTX) which causes paralytic food poisoning .

Scientific Name
Parachaeturichthys polynema
Authority
Bleeker, 1853
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
15 cm
Trophic Level
3.1
Resilience
High
Vulnerability
25.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Teleostei
Order
Gobiiformes
Gobiiformes
Family
Gobiidae
Gobiidae
Genus
Parachaeturichthys
Parachaeturichthys
Species
Taileyed goby
Parachaeturichthys polynema

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 9 - 11; Anal spines: 1; Anal soft rays: 9 - 10. Body greenish; fins dark; upper caudal fin base with a large black spot surrounded by yellow .: fusiform / normal.

🌀 Behaviour

Behavioural data for Taileyed goby is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

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

🌍 Habitat & Distribution

Marine; demersal. Tropical West Pacific: south to Natal, South Africa; India (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.1±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00891 × L2.92 (TL)
Max TL
15cm
Dorsal Spines
7
Dorsal Rays
10
Anal Spines
1
Anal Rays
10

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
25.00/100
Low vulnerability
Trophic Level
3.1
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Bleeker, 1853

⚠️ 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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