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2 
7. 
; 
PLATE XVI. 
Transverse sections of Echinoid Radioles. 
Pag. 
447. «Cidaris» parastadifera, from Cutting IV on 449. The same, a single fan-system, x 130 diam. 204 
the Veszprém—Jutas Railway (Brit. Mus., 450. Radiolus raiblianus, from Jeruzsilemhegy Brit. ; 
E 10098), x 60 diam. . . Ott Mus., E 10099), x 30 diam. . . . . 
448. «Cidaris» Hausmanni typica, from St. Caesien 451. Radiolus raiblianus, from Jeruzsalem € 
(Brit. Mus., E9518), x 60diam. . . 208, 204 Mus., E 10100), x 30 diam. . 
All figures were drawn from the sections by G. T. GwiLLiam, under the Author's direction, at ¢ a 
of 240, 80, and 40 diameters respectively, and were reduced by photography to the present. 
