ClipArt ETC
"Hydroids. IV A. Campanularian. IV B. A fragment enlarged, showing stalked hydrothecae (H.), a gonotheca (G.); C., the coenenchyma; P., the perisarc; S., a stalk." -Thomson, 1916

Campanularian Hydroid

"Hydroids. IV A. Campanularian. IV B. A fragment enlarged, showing stalked hydrothecae (H.), a gonotheca…

"Hydroids. III A. Plumularia. III B. A fragment enlarged, showing hydrothecae (H.) on one side of each twig, an axillary gonotheca (G.) and minute nematophores." -Thomson, 1916

Plumularia Hydroid

"Hydroids. III A. Plumularia. III B. A fragment enlarged, showing hydrothecae (H.) on one side of each…

"Hydroids. II A. Piece of Sertularia. II B. A fragment enlarged, showing sessile hydrothecae (H.) on both sides of the twigs." -Thomson, 1916

Sertularia Hydroid

"Hydroids. II A. Piece of Sertularia. II B. A fragment enlarged, showing sessile hydrothecae (H.) on…

"Hydroids. I. Tubularia." -Thomson, 1916

Tubularia Hydroid

"Hydroids. I. Tubularia." -Thomson, 1916