Equus grevyi (Grevy’s zebra)

Skin biopsies of two males and one female were kindly supplied by Drs. H. Heck, Catskill Game Farm, Catskill, New York, USA, and C. Gray, National Zoological Park, Washington, D. C., USA. They gave identical karyological characteristics. The findings are also compatible with the karyotypes of various hybrids published.