ILLUSTRATED CATALOGUE 



OF THE 



MUSEUM OF COMPARATIVE ZOOLOGY, 



AT HARVAllD COLLEGE. 



No. VII. 

 KEYISION OF THE ECHINI. 



BT 



ALEXANDER AGASSIZ. 



PART III. 



Plates P, F, K, III", HP, 111% HP, IV^ Y", V, VIP, VHP, VHP, VHP, XIIP, 



XIIP, XIIP, XIII', XIIP, XIII/, XV», XIX«, XIX', XIXS 



XXP, XXP, XXP, XXIIP. 



PART IV. 



Plates P, P, XXIV, XXV, XXVI, XXVII, XXVIII, XXIX, XXX, XXXI, XXXII, 

 XXXIII, XXXIV, XXXV, XXXVI, XXXVII, XXXVIII. 



UNIVERSITY PRESS, CAMBRIDGE, 



WELCH, BIGELOW, & CO. 



1873. 



