Gangetic sleeper

📖 Overview

Gangetic sleeper (Odonteleotris macrodon), first described by Bleeker, 1853 is a medium-sized fish in the family Eleotridae (order Gobiiformes). Adults typically reach 27.80 cm in maximum length. It is diadromous, migrating between freshwater and marine environments during its life cycle. It occurs in Tropical waters. Diet is predominantly piscivorous, targeting other fish and larger prey. On the IUCN Red List, it is classified as Data Deficient.

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 10; Anal spines: 1; Anal soft rays: 8. This species is distinguished from all other species of Butidae by the following set of characters: upper and lower jaws with enlarged canine teeth (5 and 12, respectively); canines are in the outermost tooth row in the upper and anterior lower jaw, while canines are placed in the inner tooth row in the posterior lower jaw; upper jaw ending below center of the eye; interorbital sensory pore D paired with wide interval; fourth infraocular transverse row of sensory papillae crossed with a longitudinal row on the cheek; longitudinal scales 103; transverse scales 32; predorsal scales 63; transverse scales at caudal peduncle 21; circumpeduncle scales 39; D VI-I,10; A I, 8; pectoral-fin rays 17; predorsal length 38.2% of SL; body depth at anal-fin origin 18.4% of SL; eye diameter 3.3% of SL. Colouration: unpaired fin rays variegated by small blackish spots; a red spot on the upper part of the caudal-fin base when fresh .Cross section: oval.

🌀 Behaviour

Behavioural data for Gangetic sleeper is currently being reviewed.

🦐 Diet

🥚 Reproduction

🌍 Habitat & Distribution

Marine; freshwater; brackish; demersal. Tropical West Pacific: India, Myanmar, Thailand, Malyasia, Indonesia, and questionable in Australia.

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🐠 Related Species

🔍 Similar Species

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