Beige bristle shark

📖 Overview

Beige bristle shark (Dichichthys bigus) is a ray-finned fish. It inhabits marine (saltwater) waters in deep-water environments. This species can reach a maximum total length of 71 cm. It occurs at depths between 590 and 881 metres. With a trophic level of 3.9, it is a mid-level predator. It is assessed as Data Deficient on the IUCN Red List.

🔬 Taxonomy

🐟 Physical Description

This scyliorhinid catshark is characterized by the following: a soft body with velvety skin, with small tricuspidate denticles; plain pale yellowish brown coloration; fins yellowish brown with slightly paler edges; dorsal caudal crest well-developed, ventral crest distinct but weak, denticles enlarged on crest; teeth mainly tricuspidate, 120 rows in upper jaw; first dorsal fin slightly behind mid-length, pre-first dorsal length 54.9% TL; pelvic fins slightly forward of mid-length, pre-pelvic length 48.9% TL; vent at middle of body, pre-vent length 50.8% TL; relatively short snout, prenarial length 4.2% TL; short mouth, length 3.6% TL; short labial furrows, lower furrow longer than upper one, 1.7% and 1.2% TL respectively; head is not depressed, the height subequal to its width, with length shorter than abdomen, 19.8% TL; pectoral-pelvic length 25.4% TL; second dorsal fin larger than first, anterior margins of first 5.2% and second 9.3% TL; subterminal caudal lobe relatively small, with subterminal margin length 3.8% TL, terminal margin length 3.6% TL; 47 monospondylous centra; 102 precaudal centra, 144 total centra .: elongated.

🌀 Behaviour

Behavioural data for Beige bristle shark is currently being reviewed.

🦐 Diet

🥚 Reproduction

🌍 Habitat & Distribution

Marine; bathydemersal; depth range 590 - 881 m . Deep-water

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🐠 Related Species

👥 Community & Contribute