S'o. 5-/7 



Bulletin of the Museum of Comparative Zoology 



AT HARVARD COLLEGE. 



Vol. LXIL No. 6. 



BRITTLE-STARS, NEW AND OLD. 



By Hubert Lyman Clark. 



With Eight Plates. 



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



PRINTED FOR THE MUSEUM. 



October, 1918. 



