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n.1.(Zool.) 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.
References in periodicals archive ?
Gonothecal pedicels short, length 60-300 [micro]m (n = 10), diameter 60-120 [micro]m (n = 10), with 2-8 annulations (n = 10) throughout, arising near base of hydrothecal pedicels or directly from hydrorhiza; several medusa buds in each gonotheca, but some gonothecae empty.
After the gonotheca was cut open with a thin needle, the star-shaped embryos and preactinulae were picked up with the needle from the dissociated gonophores.
Mature gonotheca, dark orange, longer, 960-989 [micron]m long, placed like the young ones; asymmetric; wide terminal orifice, about 330 [micron]m in diameter, usually constricted just below margin; short pedicel, 4-6 annuli; 2-4 developing medusae.