Toothed no-line scorpionfish

📖 Overview

Toothed no-line scorpionfish (Phenacoscorpius adenensis) is a ray-finned fish of the family Scorpaenidae. It inhabits marine (saltwater) waters in deep-water environments. This species can reach a maximum total length of 10 cm. It occurs at depths between 139 and 736 metres. With a trophic level of 3.5, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 12; Dorsal soft rays (total): 8 - 9; Anal spines: 3; Anal soft rays: 5. This species is distinguished by the following set of characters: pectoral-fin rays 16-18 (mode 17) with middle rays branched in young and adults; pored lateral-line scales 2-8 (mode 3) with last pored scale situated from below second to fifth dorsal-fin spine base; longitudinal scale series about 50 rows; gill rakers 17-21 (mode 19); presence of palatine teeth; distinct nuchal and parietal spines; suborbital spines 3-5 (mode 5); the nape and anterior part of body moderately arched throughout life; relatively short post-nuchal-spine length, 3.2-9.5% (mean 5.7%) of SL; relatively long caudal-fin length, 23.4-30.7% (mean 26.7%) of SL; black spots on posterior half of caudal peduncle 5-37 (mode 8); body of preserved specimens with 4 distinct saddles .: short and / or deep; Cross section: compressed.

🌀 Behaviour

Behavioural data for Toothed no-line scorpionfish is currently being reviewed.

🦐 Diet

🥚 Reproduction

🌍 Habitat & Distribution

Marine; bathydemersal; depth range 139 - 736 m . Deep-water West Pacific.

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🐠 Related Species

🔍 Similar Species

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