Andriyashev largeheaded sculpin

📖 Overview

Andriyashev largeheaded sculpin (Andriashevicottus megacephalus), first described by Fedorov, 1990 is a medium-sized fish in the family Cottidae (order Perciformes). Adults typically reach 23.60 cm in maximum length. It inhabits marine coastal and open-ocean environments. It occurs in Boreal waters. It feeds on a mix of small fish and invertebrates as a mid-level predator.

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 9; Dorsal soft rays (total): 20; Anal soft rays: 13; Vertebrae: 40. Head large; subopercle spines 4, upper one is largest, bent upward, forked; no spines and crests on occiput; scales on the head in dorsal view stretch forward along the interorbital space to the anterior margin of the eye; in lateral view, scales drop to the level of the lower posterior margin of the eye, the suborbital support and upper preopercular spine; body scales below the base of dorsal spine in the form of a band with irregular diagonal rows, in a row along the lateral line and in a spot under the pectoral fin behind the upper margin of its base. 2 nostrils; branchiostegal membranes united and free of isthmus; well developed pseudobranch; a small opening behind the 4th gill arch .

🌀 Behaviour

Behavioural data for Andriyashev largeheaded sculpin is currently being reviewed.

🦐 Diet

🥚 Reproduction

🌍 Habitat & Distribution

Marine; demersal; depth range 100 - ? m . Boreal Northwest Pacific: known only from the holotype taken from off Simushir Island, Kuril Islands.

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

📊 Population Risk & Fisheries

🔍 Similar Species

🗺️ Global Occurrence Map

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

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