Bulletin of the Museum of Comparative Zoology 



at harvard college. 



Vol. LII. No. 5. 



REPORTS ON THE SCIENTIFIC RESULTS OF THE EXPEDITION TO THE 

 EASTERN TROPICAL PACIFIC, IN CHARGE OF ALEXANDER AGASSIZ, 

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

 OCTOBER, 1904, TO MARCH, 1905, LIEUT. COMMANDER L. M. GAKRETT, 

 U. S. N., COMMANDING. 



XV. 



UEBER DIE ANATOMIE UND SYSTEMATISCHE 



STELLUNG VON BATHYSCIADIUM, 



LEPETELLA, UND ADDISONIA. 



Von Johann Thielb. 



With Two Plates. 



[Published by Permission of Gboroe M. Bowkbs, U. S. Fish Commiaaioner.] 



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

 PRINTED FOR THE MUSEUM. 



October, 1908. 



