The Collaborative International Dictionary of English v.0.48:

Bolty \Bol"ty\, n. (Zool.)
   An edible fish of the Nile (genus Chromis). [Written also
   bulti.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Bulti \Bul"ti\, n. (Zool.)
   Same as Bolty.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Chromid \Chro"mid\, n. [Gr. ? a kind of fish.] (Zool.)
   One of the Chromid[ae], a family of fresh-water fishes
   abundant in the tropical parts of America and Africa. Some
   are valuable food fishes, as the bulti of the Nile.
   [1913 Webster]