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Mutizwa TI et al. 2026 (3)

Researchers examined specimens collected from several locations throughout the Zambezi River system. Earlier field observations had revealed considerable differences in body shape, skin texture, and colour patterns among fishes previously identified as Chiloglanis neumanni. The new study confirms that several of these populations represent separate species. This species was recorded in the Shire and Ruo river systems in Malawi. It is distinguished by the absence or strong reduction of the inner barbels on the lower jaw, which are clearly visible in several related species. Other characteristics include prominent cone-shaped skin projections, closely packed lower-jaw teeth, and a relatively thick caudal peduncle (Mutizwa TI et al.). Aquarium Care: Good oxygenated water from a power filter. Sand or gravel substrate with smooth rocks or pebbles. Their dorsal and pectoral fins are sharp and can cause wounds if not handled carefully. Sexual Differences: Usually in the form of a different shaped caudal fin. Diet: Mouth and dentition suggest that it is a bottom feeder and algal grazer. In the aquarium feed algae, fly larvae foods, bloodworm, and flake food. Etymology: The specific name imberbis is the Latin word meaning beardless. This is a reference to the complete absence or presence of small rudimentary medial mandibular barbels, which contrasts with the much longer and conspicuous barbels that are characteristic of the congenic species.

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Mochokidae

Africa: Shire and Ruo river systems in Malawi. Type locality: Likhubula stream at Phalombe road, Ruo River, Zambezi River system, Malawi, 15° 56.54' S, 35° 29.47' E.

5.0cm. (2ins)

23-26°C (73-79°F)

6.5-7.2.

Fish in the News: 2026.
Mutizwa, T. I., Ntokoane, T., & Chakona, A. (2026). A deeper look into the diversity of suckermouth catfishes (Mochockidae: Chiloglanis Peters 1868) of southern Africa, with the description of four new species. Journal of Fish Biology, 1–22. First published: 14 October 2026.