Gastrovascular cavity (G)
Tentacle (A)
Cnidocyte(E)
Ectoderm (I)
Endoderm (H)
Mesoglea (C)
Ovary/Teste (J)
Bud (B)
Nematocyst (F)
Mouth (K)
Basal Disk (D)

HYDRA ANATOMY KEY

hydra drawing