marten cat vs musteline

marten cat and musteline both are nouns.

Word	Noun	Adjective	Verb	Adverb
marten cat	Yes	No	No	No
musteline	Yes	No	No	No

As nouns, musteline is a hypernym of marten cat; that is, musteline is a word with a broader meaning than marten cat:

marten cat: agile slender-bodied arboreal mustelids somewhat larger than weasels
musteline: fissiped fur-bearing carnivorous mammals

Other hypernyms of marten cat include mustelid, musteline mammal.

marten cat (noun)	musteline (noun)
agile slender-bodied arboreal mustelids somewhat larger than weasels	fissiped fur-bearing carnivorous mammals