Bulletin of the Museum of Comparative Zoology 



at harvard college. 



Vol. LII. No. 11. 



REPORTS OX THE SCIEXTIFIC RESULTS OF THE EXPEDITION TO THE 

 EASTERN TROPICAL PACIFIC, IN CHARGE OF ALEXANDER AGASSIZ, 

 BY THE U. S. FISH COMMISSION STEAMER "ALBATROSS," FROM 

 OCTOBER, 190i, TO MARCH, 1905, LIEUT. COMMANDER L. M. GARRETT, 

 U. S. N., COMMANDING. 



XIX. 



PYCNOGONIDA. 



By Leon J. Cole. 



With Three Plates. 



[Published by Permission of Geoeoe M. Bowers, U. S. Fhh Commissioner.] 



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

 PRINTED FOR THE MUSEUM. 



AuGCST, 1909. 



