Photocorynus Spiniceps

📖 Overview

Photocorynus Spiniceps (Photocorynus spiniceps) is a ray-finned fish of the family Linophrynidae. It inhabits marine (saltwater) waters in deep-water environments. This species can reach a maximum total length of 1 cm. It occurs at depths between 990 and 1420 metres. With a trophic level of 3.7, it is a mid-level predator. It is assessed as Least Concern on the IUCN Red List.

🔬 Taxonomy

🐟 Physical Description

Metamorphosed females distinguished by the following characteristics: have spine on epiotic, pair of spines on postemporal and 5-6 spines on preopercle; frontals meet on midline, each with well-developed anterodorsal spine; moderately strong maxillae, jaws with numerous short teeth arranged in several series; absence of vomerine teeth; presence of first pharyngobranchial; ceratohyal lacking anterodorsal process; posterior margin of hypural plate is entire; extremely short ninth caudal fin ray, length of illicium less than 10%SL; esca nearly sessile on snout, without appendages; absence of hyoid barbell; second and third pectoral radials are subequal; darkly pigmented skin. Free-living juvenile males characterized by: lacking cranial and preopercular spines; preopercle not strongly curved; epiotic region of skull highly elevated; 8-9 teeth on each side of upper and lower jaws, all shorter than the denticular teeth; small denticular bones, placed slightly behind tip of jaws; slender denticular teeth, 3 on upper denticular and 3-4 on lower denticular; slightly tubular eyes, diameter 8-9% SL; moderately enlarged and inflated olfactory organs, nearly as large as eyes; 3 olfactory lamellae; skin unpigmented. Adult males characterized by: having skin that is very faintly pigmented; olfactory organs and to a lesser extent the eyes are degenerated; jaw teeth lost except in the lower jaw of one known specimen .: short and / or deep.

🌀 Behaviour

Behavioural data for Photocorynus Spiniceps is currently being reviewed.

🦐 Diet

Diet information for Photocorynus Spiniceps is currently being compiled.

🥚 Reproduction

Reproduction data for Photocorynus Spiniceps is currently being compiled.

🌍 Habitat & Distribution

Marine; bathypelagic; depth range 990 - 1420 m . Deep-water known from both sides of the Pacific Ocean.

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🔍 Similar Species

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .

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