Shirai's spurdog
📖 Overview
Shirai's spurdog (Squalus shiraii) is a ray-finned fish of the family Squalidae. It inhabits marine (saltwater) waters in pelagic environments. This species can reach a maximum total length of 68.5 cm. It occurs at depths between 310 and 390 metres. With a trophic level of 4.1, it is a mid-level predator. It is assessed as Vulnerable on the IUCN Red List.
🔬 Taxonomy
🐟 Physical Description
Vertebrae: 120 - 123. This species is distinguished from S. mitsukurii by the following characters: colour of body brown dorsally; caudal fin with ventral and dorsal tips markedly tapered and broadly white; dermal denticles uniscuspidate and lanceolate; larger number of vertebrae, precaudal 91-94, total 120-123 (vs. body dark grey to black; caudal fin with ventral and dorsal tips rounded and not white in colour; denticles tricuspidate and rhomboid; precaudal 86-90 and total 116-117 S. mitsukurii) .Cross section: angular.
🌀 Behaviour
Behavioural data for Shirai's spurdog is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; pelagic-oceanic; depth range 310 - 390 m . Subtropical
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🔍 Similar Species
👥 Community & Contribute
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