The Cambridge natural history, Vol. 01 (of 10)

by Marcus Hartog; Sydney J. Hickson; E. W. MacBride; Igerna Brünhilda Johnson Sollas

of Cidaridae, [514], [530], [533];

of Endocyclica, [530];

of Echinothuriidae, [535];

of Asthenosoma hystrix, [537];

of Saleniidae, [537];

of Arbaciidae, [538];

of Diadematidae, [538];

of Echinidae, [539];

of Echinocardium cordatum, [550];

of Spatangoidea, [553];