The BB Zebra, or Chilumba Zebra is found along the northeast coast of Malawi, from Ngara to Chirwa Island. Specimens closely resembling M. sp. ''Zebra Chilumba'' and occuring either South or East of this stretch are classified as M. fainzilberi. Males claim a cave among the rocks, which is fiercely guarded against intruders. Spawning takes place within this cave, in seclusion. Brooding females take cover among holes in the rocks. The population found at Luwino Reef is the one most commonly exported for the aquarium hobby and is quite popular due to is distinctive, bright yellow chin.