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🌊 Marine Least Concern 🌡️ Deep-water

Dark blind ray

Benthobatis moresbyi Alcock, 1898
Max Length
35.1 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
787–1071 m
Climate
Deep-water
Resilience
Low
Vulnerability
29.00/100
Typical Length
-
Depth Zone
deep-water

📖 Overview

A benthic species on continental slope. Probably suction feeds on bottom-dwelling invertebrates based on its oral morphology. Biology little known. Maturity size uncertain, probably close to 18 cm TL in males .

Scientific Name
Benthobatis moresbyi
Authority
Alcock, 1898
Habitat
Marine
Climate
Deep-water
Body Shape
Other
IUCN Status
LC
Max Length
35.1 cm
Depth Range
787–1071 m
Trophic Level
3.3
Resilience
Low
Vulnerability
29.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dark brown dorsal and ventral surfaces; ventral entirely dark. Snout elongated, usually more than 1/3 in disc length (preocular snout region 40% in disc length in lectotype). Disc oval, longer than wide. Dorsal fins with long, fleshy bases which are much longer than height of the fin (dorsal fin length 50-55% of fin height). Origin of first dorsal well anterior to posterior tip of pelvic fins, close to mid pelvic length; dorsal fins close together, interdorsal space less than length of dorsal bases. Distance between second dorsal and caudal fins much smaller than length of base of second dorsal fin. Caudal fin extremely elongated, reaching almost 1/2 tail length as measured from posterior tips of pelvic fins; caudal fin length 40.4% of distance between cloaca and caudal fin tip .: other.

🌀 Behaviour

Behavioural data for Dark blind ray 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; bathydemersal; depth range 787 - 1071 m . Deep-water; 15°N - 5°N, 49°E - 77°E Indian Ocean: Arabian and Laccadive seas (off Travancore coast), Yemen and Somalia; including India (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water
Trophic Level
3.3±0.4
Food Items

bottom-dwelling invertebrates based on its oral morphology

📐 Morphometrics

Length–Weight Relationship: W = 0.01175 × L2.88 (TL)
Max TL
35.1cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2017

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
29.00/100
Low vulnerability
Trophic Level
3.3
Predator
Body Shape
Other
Climate Zone
Deep-water
Described By
Alcock, 1898

🗺️ 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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