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 ;
Difference Between Hydra and Obelia | Definition, Characteristics, Similarities and Differences
Obelia, 40x | Obelia belongs in the phylum Cnidaria, which c… | Flickr
Life Cycle of Obelia (With Diagram) | Phylum Cnidaria