hyalea, hyalæa

[Gr.hyaleos=gla y.] Zool.: The typical genus of the family Hyalæide (q. v.). The shell is globular and translucent. The animal has long appendages to the mantle, which is slit at both sides. Nineteen recent species are known from the Atlantic, the Mediterranean, and the Indian Ocean. Five are fo il, the genus extending from the Miocene till now. hy-a-le-i-dæ, hy-a-læ-i-dæ, s . pl . [Mod. Lat. hyale (a), hyala (a); Lat. fem. pl. adj. suff. -ida .] Zool .: A family of Pteropod ous Mollusks, section Thecosomata. The shell is straight or curved, globular, or needle-shaped, and symmetrical. The animal has two large fins.