ILLUSTRATED CATALOGUE 



MUSEUM OF COMPARATIVE ZOOLOGY, 



AT HARVARD COLLEGE. 

 No. VII. 



REVISION OF THE ECHINI, 



BY 



ALEXANDER AGASSIZ. 



PART I. 



Plates A, B, C, D, E, F, G. 



PART II. 



Plates I, P, P, II, II", IP, IP, HI, IV, IV", V, VI, VP, VII, VIII, IX, X, X«, XI, XI", 



XP, XP, XP, XP, XI/, XII, XIP, XIP, XIP, XIP, XIII, XIV, XIV", XV, 



XVI, XVII, XVIII, XIX, XX, XXI, XXII, XXIIL 



UNIVERSITY PRESS, CAMBRIDGE, 



WELCH, BIGELOW, & CO. 



1872. 



