Radiolaria

Chitonellus fasciatus Quoy; ant, anterior end.

Globe-fish (Orthagoiscus), and Sun-fish (Tetraodon).

Platysomatichthys Hippoglossoides (Walbaum). Greenland Halibut

Radiolaires. 1, Arachnocorys circumtexta (Haeck.); 2, Amphilonche heteracantha (Haeck.)

Glutinous Hag (1) Lancelet (2).

Aptychus of Ammonite (Trigonellites latus), Cameridge Clay, Ely.

Young of Orthagoriscus, 18 and 22 mill. long.