Plate 11. 



Fig. 1. AstroiH clcii IokIIux: nbnctinal aspect, oiilar.t,'0(l. p. 84. 



2. Same; adiiial surracc of a ]i(U-tion of ray, ciilariied. 



3. Asiropccicii crlUdri-s; actiiial surface, p. 70. 



4. Same ; abactinal surface. 



5. Asfropcrtcii pJinifiiiiorus; abactinal aspect of type, enlarged, p. G5. 



558 



