Hydra
| View Cart ⇗ | Info
Hydra are in the Jellyfish family, class Hydrozoa. Cross-section of the body showing the two layers of cells of the body wall.
Galleries
JellyfishSource
David Starr Jordan and Vernon Kellogg,Animal Life: A First Book of Zoology(New York:D. Appleton and Company, 1912) 38
Downloads
2400×2375, 1.4 MiB
1024×1013, 170.9 KiB
640×633, 82.1 KiB
320×316, 27.7 KiB