Molecular Expressions Microscopy Primer: Specialized Microscopy Techniques - Fluorescence Digital Image Gallery - Obelia Hydroid: First Generation
Obelia longissima
Invertebrate Embryology: Life cycle of hydrozoan Obelia sp.
A manual of elementary zoology . Zoology. HYDRA AND OBELIA. POLYPS AND MEDUSA. 175. --ect. -end. perith. Fig. 109.—Part of a colony of Obelia, magnified. bl., Blastostyle ; ect., ectoderm ;