What does hypoleucus mean in Latin?

hypoleucus, a adjective, means “white underneath”.

How do you pronounce hypoleucus?

In classical Latin, [hy.pɔˈɫɛu̯.kʊs]; in ecclesiastical (church) Latin, [i.poˈlɛːu̯.kus].

adjectivefirst/second-declension adjective

hypoleucus (feminine hypoleuca, neuter hypoleucum)

Classical[hy.pɔˈɫɛu̯.kʊs]Ecclesiastical[i.poˈlɛːu̯.kus]

singular
form	masculine	feminine	neuter
nominative	hypoleucus	hypoleuca	hypoleucum
genitive	hypoleucī	hypoleucae	hypoleucī
dative	hypoleucō	hypoleucae	hypoleucō
accusative	hypoleucum	hypoleucam	hypoleucum
ablative	hypoleucō	hypoleucā	hypoleucō
vocative	hypoleuce	hypoleuca	hypoleucum

plural
form	masculine	feminine	neuter
nominative	hypoleucī	hypoleucae	hypoleuca
genitive	hypoleucōrum	hypoleucārum	hypoleucōrum
dative	hypoleucīs	hypoleucīs	hypoleucīs
accusative	hypoleucōs	hypoleucās	hypoleuca
ablative	hypoleucīs	hypoleucīs	hypoleucīs
vocative	hypoleucī	hypoleucae	hypoleuca

From Ancient Greek ὑπόλευκος (hupóleukos).