Taxonomy & naming
Maylandia sp. "Chinyankwazi" has no describing author, no year of publication, and no FishBase entry. It is known only by the informal trade name taken from Chinyankwazi Island, one of its two recorded localities, following the standard open-nomenclature convention of genus, "sp.", and a geographic tag in quotation marks. Maylandia (the "zebra mbuna", also placed by some authors in the genus Metriaclima) is the large radiation responsible for much of Lake Malawi's rock-dwelling cichlid diversity, and the Chinyamwezi–Chinyankwazi–Maleri–Nakantenga island group in south-central Malawi is a well-documented source of multiple distinct, locality-restricted zebra-complex populations, of which this is one. No formal revision has resolved this form's relationship to its island neighbours, and it should not be assumed identical to any named form from a nearby locality.
Morphology
No detailed published colour or morphological account exists specifically for Maylandia sp. "Chinyankwazi". The island group it comes from is known in the aquarium and field literature for zebra-complex populations showing the genus's classic dark-barred pattern in males, frequently alongside orange-blotch (OB) females in several neighbouring populations, but this form's own specific pattern has not been documented in the sources consulted for this article, and no colour description should be assumed for it beyond genus-typical Maylandia proportions and build.
Habitat
This form is recorded from Chinyamwezi Island and Chinyankwazi Island, two small, closely positioned islands in south-central Lake Malawi near the more extensively studied Maleri island group. Like other Maylandia, it is expected to occupy rocky reef habitat around the islands' boulder-strewn shorelines. Water conditions follow Lake Malawi's typical rocky-habitat envelope: warm, hard, and strongly alkaline, at the moderate depths characteristic of island mbuna reefs in this part of the lake.
Feeding
Maylandia is, genus-wide, an aufwuchs grazer, rasping algae, diatoms, and associated micro-organisms from rock surfaces with specialised bicuspid teeth. No feeding study specific to "Chinyankwazi" has been published, but this dietary pattern is close to universal across the genus and is a reasonable expectation for this form as well.
Mating
Male mbuna of the Maylandia zebra complex are territorial rock-holders, defending a patch of reef against rivals and displaying to passing females with no lasting pair bond. No courtship account specific to this form has been published, so its behaviour is presented here as genus-typical rather than independently documented.
Breeding
As with every Lake Malawi cichlid, Maylandia sp. "Chinyankwazi" is presumed to be a maternal mouthbrooder: the female lays eggs, takes them into her mouth, and is drawn to the egg-spot markings on the male's anal fin, whose pursuit causes her to take in milt that fertilises the clutch already in her buccal cavity. She then broods the eggs and fry for roughly three weeks before releasing free-swimming young, with no male or post-release parental care. No clutch size has been documented for this specific form; genus-typical Maylandia broods run from roughly a dozen to several dozen eggs depending on female size.
In the aquarium
Maylandia sp. "Chinyankwazi" is a specialist, locality-based form rather than a mainstream trade fish, and hobbyist documentation specific to it is limited. Keepers should follow standard Maylandia husbandry: a large rockwork structure with plenty of caves and broken sightlines, fine sand substrate, and hard, alkaline water in the range of roughly 75–82 °F and pH 7.7–8.6. Diet should lean heavily plant-based — spirulina flake, algae wafers, and blanched vegetables — with meaty foods limited to occasional supplements, since chronic high-protein feeding predisposes mbuna to bloat. A single male with several females is the standard, lowest-stress social arrangement; because the island group this form comes from hosts several visually similar zebra-complex populations, keepers who intend to breed true should avoid mixing it with congeners from neighbouring islands.
Conservation
Maylandia sp. "Chinyankwazi" has no IUCN Red List assessment, since formal evaluation requires a validly published scientific name and none exists for this form. As a rock-restricted endemic apparently confined to a pair of small islands in south-central Lake Malawi, it shares the general pressures documented across the lake's island-endemic mbuna — a naturally narrow range, sensitivity to localised habitat disturbance, and exposure to the ornamental collecting trade that targets many of the region's distinctive zebra-complex forms — but no population-specific data exist to characterise its status beyond that general context.