\Gon`o*the"ca\, n.; pl. {Gonothec?}. [NL., fr. Gr. ?
offspring + ? box.] (Zo["o]l.)
A capsule developed on certain hydroids ({Thecaphora}),
inclosing the blastostyle upon which the medusoid buds or
gonophores are developed; -- called also {gonangium}, and
{teleophore}. See {Hydroidea}, and Illust. of
{Campanularian}.