Assertion: black olm | /r/HasAspect | shorter head
Facets:
value: compared to the nominate subspecies
type: OTHER
value: with more-developed eyes
type: OTHER
Source sentences:
text: The black olm, a subspecies, has a shorter head with more-developed eyes compared to the nominate subspecies.
text: Black olms, a variant of this species previously known as Proteus anguinus parkelj, have permanently dark skin and a shorter head.