Cynolebias Roseus
📖 Overview
Cynolebias Roseus (Cynolebias roseus), first described by Costa, 2014 is a tiny fish in the family Rivulidae (order Cyprinodontiformes). Adults typically reach 4.70 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Vulnerable.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Rivulidae kept in the hobby.
🔬 Taxonomy
🐟 Physical Description
Dorsal soft rays (total): 16 - 20; Anal soft rays: 19 - 23; Vertebrae: 34 - 35. >Cynolebias roseus can be diagnosed from all species of C. porosus group, by having contact organs over the internal surface of all the pectoral-fin rays in males (vs. contact organs restricted to the dorsalmost pectoral-fin rays). It can be further separated from the two other species of the C. porosus group endemic to the São Francisco River basin, C. porosus and C. obscurus, by the possession of the following combination of characters: presence of ventral process of autopalatine (vs. absence in C. obscurus); flank with white dot on the center of each scale (vs. restricted to middle portion of the flank in C. obscurus); upper jaw not ventrally displaced (vs. ventrally displaced in C. porosus; and flank pale golden to light pink in males (vs. dark brown in C. obscurus), distal portion of anal-fin rays red in males (vs. grey in C. obscurus) .: fusiform / normal.
🌀 Behaviour
Behavioural data for Cynolebias Roseus is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Freshwater; benthopelagic. Tropical South America: São Francisco River basin in Brazil.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🦠 Common Diseases
The following diseases are known to affect Cynolebias Roseus.
🔍 Similar Species
👥 Community & Contribute
No observations yet - be the first to log one!
View all observations for Cynolebias Roseus ↗Spotted incorrect or outdated data?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.