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

🌊 Marine Least Concern 🌡️ Deep-water

Soft leafvent angler

Haplophryne mollis Brauer, 1902
Max Length
15.9 cm
Max Weight
Lifespan
Trophic Level
3.9
Depth
Climate
Deep-water
Resilience
Vulnerability
10.00/100
Typical Length
8 cm
Depth Zone
deep-water

📖 Overview

Also mesopelagic . A small deep-sea angler fish. Males dwarfed, becoming parasitic on females . An 8 cm female was found with 3 parasitic males of 18 mm length, attached to her ventral side. Adult (=parasitic) males are colorless with reduced teeth, jaws, and eyes. Information on the maximum length of female was taken from Ref. 10762.

Scientific Name
Haplophryne mollis
Authority
Brauer, 1902
Habitat
Marine
Climate
Deep-water
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
15.9 cm
Trophic Level
3.9
Vulnerability
10.00/100
Migration
Oceanodromous
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 3; Anal spines: 0; Anal soft rays: 3. Mature females are unpigmented and have a nearly rounded shape of body. There are spines above the eyes and behind the mouth. The illicium consists of a rounded flap without pole. Small numerous teeth in both jaws . Free lining males are characterized by: having weak sphenotic spines, nearly absent; slender and angled preopercle; moderately elevated epiotic region of skull; well developed premaxillae; 20-24 teeth on each side of upper and lower jaws .: short and / or deep; Cross section: circular.

🌀 Behaviour

Behavioural data for Soft leafvent angler is currently being reviewed.

🦐 Diet

Diet information for Soft leafvent angler is currently being compiled.

🥚 Reproduction

Reproduction data for Soft leafvent angler is currently being compiled.

🌍 Habitat & Distribution

Marine; bathypelagic; oceanodromous ; depth range ? - 2250 m . Deep-water known from off Madeira.

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water
Migration
Oceanodromous
Trophic Level
3.9±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.01995 × L3.01 (TL)
Max TL
15.9cm
Dorsal Rays
3
Anal Rays
3

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2014

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.9
Predator
Body Shape
Short and / or deep
Climate Zone
Deep-water
Described By
Brauer, 1902

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Ghostly seadevil · Soft Leafvent Angler
🌍CES bradovous malozubý
🇩🇰Danish Blegangler
🇩🇪German Tiefseeangler
🇫🇮Finnish sarvikuultokrotti
🇯🇵Japanese Yureionianko · ユウレイオニアンコウ
🇷🇺Russian Нежная гаплофрина
🇨🇳Chinese 獨樹鬚魚

Scientific Synonyms

Scientific Name Author Year Status
Aceratias mollis Brauer 1902 Synonym
Edriolychnus macracanthus Regan & Trewavas 1932 Synonym
Edriolychnus radians Regan & Trewavas 1932 Synonym
Edriolychnus roulei Regan & Trewavas 1932 Synonym
Edriolychnus schmidti Regan 1925 Synonym
Edriolynchnus macracanthus Regan & Trewavas 1932 Synonym
Eridolchynus schmidti Regan 1925 Synonym
Haplophryne triregium Whitley & Phillipps 1939 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) — 10 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 Soft leafvent angler ↗
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.