•^YU 



Bulletin of the Museum of Comparative Zoology 

 AT HARVARD COLLEGE. 



Vol. XLVI. No. 14. 



CERTAIN SCOPE LIDS IN THE COLLECTION OF THE 

 MUSEUxM OF COMPARATIVE ZOOLOGY. 



By Charles H. Gilbert. 



With Three Plates. 



CAMBRIDGE, MASS., U.S.A.: 



PRINTED FOR THE MUSEUM. 



April, 1906. 



