Schizorhinal(Zoöl) Having the anterior nostrils prolonged backward in the form of a slit.
Schizorhinal(Anat) Having the nasal bones separate.
Century Dictionary and Cyclopedia
schizorhinalIn ornithology, having each nasal bone deeply cleft or forked: opposed to holorhinal. The term denotes the condition of the nasal bone on each side(right and left), and not the separateness of the two nasal bones, which it has been misunderstood to mean. By a further mistake, it has been made to mean a slit-like character of the external nostrils, with which it has nothing to do.
Chambers's Twentieth Century Dictionary
adjSchizorhinalskiz-ō-rī′nal having the nasal bones separate: having the anterior nostrils prolonged in the form of a slit.