Hyalospongia

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Hyalospongia \Hy`a*lo*spon"gi*a\, n. pl. [NL., fr. Gr. "y`alos
     glass + ? a sponge.] (Zool.)
     An order of vitreous sponges, having glassy six-rayed,
     siliceous spicules; -- called also {{Hexactinellin[ae]}}.
     [1913 Webster]