Bulletin of the Museum of Comparative Zoology 



at harvard college. 



Vol. LII. No. 12. 



CRUISE OF THE U. S. FISHERIES SCHOONER "GRAMPUS" IN 

 THE GULF STREAM DURING JULY, 1908, WITH DESCRIP- 

 TION OF A NEW MEDUSA (BYTHOTIARIDAE). 



By Henry B. Bigelow. 



With One Plate. 



[Published by Permission of Gecbge M. Bowebs, U. S. Fish Commissioner.] 



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



PRINTED FOR THE MUSEUM. 

 August, 1909. 



