Alis' velvet skate

📖 Overview

Alis' velvet skate (Notoraja alisae), first described by Séret & Last, 2012 is a large fish in the family Arhynchobatidae (order Rajiformes). Adults typically reach 51.50 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 870 to 1049 metres. It occurs in Subtropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Least Concern.

🔬 Taxonomy

🐟 Physical Description

This is a medium-size species with the following set of characters: disc wider than long, width 50.9-55.5% TL, length 43.8-45.7% TL; dorsal head length 17.1-19.0% TL; interspiracular distance 6.2-6.7% TL, internasal distance 7.0-8.5% TL, preorbital length 2.7-3.1 times orbit length, 3.4-3.6 interorbital; tail width at pelvic-fin axil 1.5-1.6 times its height; one rudimentary preorbital thorn; velvety dorsal and ventral surfaces of disc, covered with fine denticles; long and slender tail, entirely velvety and without enlarged thorns; lateral tail folds variably expanded posteriorly, its width sometimes greater than tail width at level of second dorsal fin; expanded nasal lobes, width of nasal curtain 8.1-9.8% TL; anterior pelvic-fin lobe shorter that posterior lobe; dorsal and ventral surfaces are pale greyish brown; total pectoral-fin radials 63; monospondylous centra 24-25, total diplospondylous centra 112-117, total centra 136-142 .: other (see remarks).

🌀 Behaviour

Behavioural data for Alis' velvet skate is currently being reviewed.

🦐 Diet

🥚 Reproduction

🌍 Habitat & Distribution

Marine; bathypelagic; depth range 870 - 1049 m . Subtropical; 17°S - 35°S, 166°E - 172°E

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🐠 Related Species

🔍 Similar Species

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