New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

🌊 Marine Critically Endangered 🌡️ Subtropical

Sawback angelshark

Squatina aculeata Cuvier, 1829
Max Length
188 cm
Max Weight
40.0 kg
Lifespan
-
Trophic Level
4
Depth
30–500 m
Climate
Subtropical
Resilience
Low
Vulnerability
79.00/100
Typical Length
100 cm
Depth Zone
demersal

📖 Overview

Found mainly on muddy bottom . Feeds on small sharks and jacks. Ovoviviparous . Utilized dried salted and fresh for human consumption; liver oil and hide also utilized .

Scientific Name
Squatina aculeata
Authority
Cuvier, 1829
Habitat
Marine
Climate
Subtropical
IUCN Status
CR
Max Length
188 cm
Max Weight
40 kg
Depth Range
30–500 m
Latitude
19°S – 43°N
Trophic Level
4
Resilience
Low
Vulnerability
79.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Physical description for Sawback angelshark is currently being compiled.

🌀 Behaviour

As with other angelsharks, the sawback angelshark is a bottom-dweller that tries to camouflage at the bottom of the ocean in order to ambush and capture its prey.

🦐 Diet

Sawback angelsharks are ambush predators, meaning they lie on the ocean floor and wait for their prey to pass by. They feed on small sharks, bony fishes, cephalopods, and crustaceans.

small fish
crustaceans
cephalopods

🥚 Reproduction

🐣 Ovoviviparous

Ovoviviparous, embryos feed solely on yolk .

🌍 Habitat & Distribution

Marine; demersal; depth range 30 - 500 m . Subtropical; 43°N - 19°S, 18°W - 30°E

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
4±0.4
Food Items

small sharks and jacks

📐 Morphometrics

Length–Weight Relationship: W = 0.00661 × L3.07 (TL)
Max TL
188cm
Max Weight
40,000g

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Critically Endangered
Assessment Date
2017

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
79.00/100
Very High vulnerability
Trophic Level
4
Apex / Top predator
Climate Zone
Subtropical
Latitude Range
43°N – 19°S
Described By
Cuvier, 1829

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Monkfish · Sawback angelshark · Spiny Angelshark
🏳️Catalan Escat · Escat Veixigall
🇩🇪German Sägerücken-Engelhai · Sägerücken-Engelshai
🌍ELL Ακανθορίνα
🇫🇮Finnish piikkimerienkeli · Ruskomerienkeli
🇫🇷French Ange de mer épineux
🌍HEB מלאך-ים מגובשש
🇮🇹Italian Squadrolino · Squalo Angelo
🇯🇵Japanese トゲカスザメ
🌍LIT paprastasis plokščiakūnis ryklys
🇳🇱Dutch Gestekelde zee-engel
🇵🇱Polish raszpla ciernista
🇵🇹Portuguese Anjo-espinhoso
🇷🇺Russian Обыкновенный морской ангел
🇪🇸Spanish Angel · Angelote espinoso · Angelote Espinudo
🌍TUR keler · keler baligi · keler balığı

Scientific Synonyms

Scientific Name Author Year Status
Rhina aculeata Cuvier 1829 Synonym
Squatina fimbriata Müller & Henle 1839 Heterotypic

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 662 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Sawback angelshark ↗
Suggest an Edit

Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.

Link to a scientific paper, FishBase, or other authoritative source
Report an Issue

Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.