L. morio or morion  dark brown stone, black quartz  < mormorion, mormorionis  dark-brown crystal.
● ex “Merle du cap de bonne Espérance” of Brisson 1760 (Onychognathus).

Search for more names on the Key to Scientific Names in Ornithology by James A. Jobling.
Recommended citation
Jobling, J. A. (2019). Key to Scientific Names in Ornithology. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2019). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 25 May 2019).