Simpsonichthys Alternatus

📖 Overview

Simpsonichthys Alternatus (Simpsonichthys alternatus), first described by Costa & Brasil, 1994 is a tiny fish in the family Rivulidae (order Cyprinodontiformes). Adults typically reach 3.90 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): 14 - 22; Anal soft rays: 18 - 24; Vertebrae: 25 - 27. Bars on anal and caudal fins of male; red distal bar on these. Anal fin of female long, spatulated, and long posterior process of occipital, terminating in narrow posterior extension. Males with short to minute filamentous rays on tip of dorsal fin; dorsal fin pointed, with 6-8 bars through the whole fin; anal fin rounded; flanks with reddish gray bars. Dorsal-fin rays 18-22 in male, 14-17 in female; anal-fin rays 21-24 in male, 18-20 in female; caudal-fin rays 23-24, caudal fin subtruncate in male, rounded in female .: short and / or deep; Cross section: compressed.

🌀 Behaviour

Behavioural data for Simpsonichthys Alternatus is currently being reviewed.

🦐 Diet

🥚 Reproduction

🌍 Habitat & Distribution

Freshwater; benthopelagic; non-migratory. Tropical South America: São Francisco River basin, Brazil.

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

📊 Population Risk & Fisheries

🦠 Common Diseases

The following diseases are known to affect Simpsonichthys Alternatus.

🐠 Related Species

🔍 Similar Species

🗺️ Global Occurrence Map

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

👥 Community & Contribute