mellisugæ

from The Century Dictionary.

• In ornithology: In Merrem's classification (1813), a group of sundry tenuirostral birds, such as humming-birds and species referred to Certhia and Upupa.
• In Sundevall's system of classification, the humming-birds, family Trochilidæ, considered as a cohort of Anisodactyli of an order Volucres. Also called Longilingues.