Aphyosemion Cryptum

📖 Overview

Aphyosemion Cryptum (Aphyosemion cryptum), first described by van der Zee, Walsh, Boukaka Mikembi, Jonker, Alexandre & Sonnenberg, 2018 is a tiny fish in the family Nothobranchiidae (order Cyprinodontiformes). Adults typically reach 4.00 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Subtropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus.

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 9 - 12; Anal spines: 0; Anal soft rays: 14 - 16. Diagnosis: Males of Aphyosemion cryptum are distinguished from all other Aphyosemion, except for A. coeleste, by its unique combination of colouration characters in males: a light blue body with a few red markings on flanks and caudal peduncle; yellow to orange on distal part of unpaired fins; base of dorsal and anal fins blue, distally followed by a red band, two parallel or converging red lines along the blue centre of caudal fin; at least in anal and ventral part of caudal fin between red band and yellow to orange distal parts a narrow white line; by mitochondrial DNA results and male colour pattern it clearly belongs to the A. coeleste group . It differs from A. coeleste by the lack of a green or yellow iridescent blotch posterior to the operculum; in A. coeleste three to four less regular rows of red spots on anterior part of side within the green or yellow blotch vs. rows of red spots absent or reduced to a few irregular spots in A. cryptum .Cross section: oval.

🌀 Behaviour

Behavioural data for Aphyosemion Cryptum is currently being reviewed.

🦐 Diet

🥚 Reproduction

🌍 Habitat & Distribution

Freshwater; pelagic. Subtropical

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

📊 Population Risk & Fisheries

🐠 Related Species

🔍 Similar Species

👥 Community & Contribute