Sundadanio Echinus
📖 Overview
Sundadanio Echinus (Sundadanio echinus) is a ray-finned fish. It inhabits freshwater waters. This species can reach a maximum total length of 2.1 cm. With a trophic level of 3, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Vulnerable on the IUCN Red List.
🔬 Taxonomy
🐟 Physical Description
Dorsal soft rays (total): 9; Anal soft rays: 9; Vertebrae: 34 - 35. Distinguished from all congeners by its snout length, 15-19% HL and body depth at pelvic-fin origin, 25-30 % SL. Differs from all other species, except Sundadnio rubellus, by the presence of the secondary lateral stripe in both sexes. Can be further diagnosed by following combination of characters: large adult body size (largest specimen examined 17.8 mm SL); live males with emerald green sheen present across dorsal body surface, an intense red secondary lateral stripe, running along ventral edge of emerald green sheen from posterior to opercular opening to point opposite middle of anal fin, and an intense black marking across anterior portion of anal fin; preserved males with a well developed dark lateral stripe of roughly uniform depth along entire length, horizontal through ventral border of which, when brought forward, extending through dorsal half of eye; presence of a distinctive secondary lateral stripe of small melanophores running parallel to dark lateral stripe along its ventral margin from posterior to opercular opening to point opposite middle of anal fin; presence of reticulate pattern along dorsal body surface posterior to dorsal-fin origin; absence of dusky markings on dorsal and caudal fins; presence of enlarged scales next to window in body musculature; complete covering of scales on caudal peduncle; scales posterior to enlarged scales next to window in body musculature and anterior to anal-fin origin with a single small tubercle at center . : fusiform / normal.
🌀 Behaviour
Behavioural data for Sundadanio Echinus is currently being reviewed.
🦐 Diet
Diet information for Sundadanio Echinus is currently being compiled.
🥚 Reproduction
Reproduction data for Sundadanio Echinus is currently being compiled.
🌍 Habitat & Distribution
Freshwater; benthopelagic. Tropical West Kalimantan, Indonesia.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
👥 Community & Contribute
No observations yet — be the first to log one!
View all observations for Sundadanio Echinus ↗Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.
Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.