title: On biology and structure of the testis of Philidium Leuckhart (Leptomedusae).
mesh_terms: D000818:Animals; D003063:Cnidaria; D005854:Germ Cells; D008297:Male; D008854:Microscopy, Electron; D013094:Spermatozoa; D013737:Testis / Q000166:cytology*