Stigmatochromis Macrorhynchos

📖 Overview

Stigmatochromis Macrorhynchos (Stigmatochromis macrorhynchos), first described by Yoder & Konings, 2011 is a small fish in the family Cichlidae (order Cichliformes). Adults typically reach 12.80 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. Diet is predominantly piscivorous, targeting other fish and larger prey. On the IUCN Red List, it is classified as Least Concern.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Cichlidae kept in the hobby.

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 15 - 16; Dorsal soft rays (total): 10 - 11; Anal spines: 3; Anal soft rays: 8 - 9. Diagnosis: The presence of supra-pectoral and supra-anal spots, which do not extend to the base of the dorsal fin, combined with a snout length longer than the post-orbital head length distinguishes this species as a member of Stigmatochromis . It is further diagnosed by the presence of mostly unicuspid teeth in the outer rows of the lower jaws; Stigmatochromis macrorhynchos has a narrower interorbital width than S. melanchros, 13.7–16.2% of head length vs. 19.3–20.5%, and a shorter snout to pelvic-fin origin than S. melanchros and S. modestus, 38.4-40.3% of standard length vs. 42.2-44.6% and 42.2-46.9% respectively; the distance between the dorsal fin origin and the posterior anal fin insertion is shorter in S. macrorhynchos, 51.2–51.8% of standard length, than in all other Stigmatochromis species, 53.5–57.2%; the distance between the anterior dorsal fin to pelvic-fin origin of S. macrorhynchos, 27.7–30.0% of standard length, is shorter than in S. modestus, 30.3–33.8%, S. woodi, 31.9–38.1%, and S. melanchros, 35.7–36.1%, and longer than in S. pholidophorus, 26.8%, and S. pleurospilus, 27.5%; the snout length of S. macrorhynchos, 38.0–41.2% of head length, is longer than in S. modestus, 33.5–37.4%, and S. pholidophorus, 37.1%; the smaller head depth of S. macrorhynchos, 59.8–63.6% of head length, further distinguishes it from S. woodi, 64.1–75.8%, and S. melanchros, 67.8–76.8% . : fusiform / normal.

🌀 Behaviour

Behavioural data for Stigmatochromis Macrorhynchos is currently being reviewed.

🦐 Diet

🥚 Reproduction

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical; 13°S - 14°S, 34°E - 35°E

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🦠 Common Diseases

The following diseases are known to affect Stigmatochromis Macrorhynchos.

🐠 Related Species

🔍 Similar Species

👥 Community & Contribute