Whitetip bristle shark

📖 Overview

Whitetip bristle shark (Dichichthys albimarginatus) is a ray-finned fish. It inhabits marine (saltwater) waters in deep-water environments. This species can reach a maximum total length of 57.7 cm. It occurs at depths between 590 and 732 metres. With a trophic level of 3.9, it is a mid-level predator. It is assessed as Least Concern on the IUCN Red List.

🔬 Taxonomy

🐟 Physical Description

This scyliorhinid catshark is characterized by the following: a soft body with velvet-like skin of large tricuspidate denticles; color plain pale to medium brown; posterior margins of the dorsal, caudal and anal-fins are distinctly white-edged; upper and lower anterior caudal fin margins with pronounced caudal crests, the denticles on crests are greatly enlarged; teeth are mainly tricuspidate with greatly elongate median cusps, in 92 rows in both jaws; the first dorsal fin is slightly behind middle of back, the pelvic fins slightly in front of mid-body, prepelvic length 47% TL; vent at mid-length, pre-vent length 50% TL; relatively short snout, prenarial length 3.7% TL; short mouth, length 3.7% TL; short labial furrows, 1.7-2.0% TL, lower furrows subequal in length to upper furrows; head depressed and is shorter than abdomen, length 19.2% TL, pectoral-pelvic length 24.8% TL; second dorsal fin is larger than first, anterior margins of first 8.7% and second dorsal fin 10.4% TL; subterminal caudal lobe relatively small, subterminal margin length 3.3% TL, terminal margin length 3.8% TL; 43 monospondylous centra; 95 precaudal centra, 136 total .: elongated.

🌀 Behaviour

Behavioural data for Whitetip bristle shark is currently being reviewed.

🦐 Diet

🥚 Reproduction

🌍 Habitat & Distribution

Marine; bathydemersal; depth range 590 - 732 m . Deep-water

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🐠 Related Species

👥 Community & Contribute