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🌊 Marine Critically Endangered 🌡️ Tropical

Annandale's guitarfish

Rhinobatos annandalei Norman, 1926
Max Length
89 cm
Max Weight
2.4 kg
Lifespan
-
Trophic Level
3.7
Depth
40–90 m
Climate
Tropical
Resilience
Low
Vulnerability
42.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Primarily benthic . Occurs mainly in the marine environment, but also enters the lower reaches of rivers. Ovoviviparous . Males mature by 68 cm TL; born at ca. 20 cm TL. Females produces litters up to 6 pups . Minimum depth range from Ref. 121775.

Scientific Name
Rhinobatos annandalei
Authority
Norman, 1926
Habitat
Marine
Climate
Tropical
IUCN Status
CR
Max Length
89 cm
Max Weight
2.4 kg
Depth Range
40–90 m
Trophic Level
3.7
Resilience
Low
Vulnerability
42.00/100
Migration
Amphidromous
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Physical description for Annandale's guitarfish is currently being compiled.

🌀 Behaviour

Behavioural data for Annandale's guitarfish is currently being reviewed.

🦐 Diet

Diet information for Annandale's guitarfish is currently being compiled.

🥚 Reproduction

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures .

🌍 Habitat & Distribution

Marine; brackish; demersal; amphidromous ; depth range 40 - 90 m . Tropical; 26°N - 5°N, 56°E - 99°E Indian Ocean: Oman to the Andaman Sea, off Myanmar.

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish ⬇️ Benthic
Migration
Amphidromous
Trophic Level
3.7±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00174 × L3.1 (TL)
Max TL
89cm
Max Weight
2,400g

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Critically Endangered
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
42.00/100
Moderate vulnerability
Trophic Level
3.7
Predator
Climate Zone
Tropical
Described By
Norman, 1926

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Rhinobatus annandalei Norman 1926 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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