20 BULLETIN 82, UNITED STATES NATIONAL MUSEUM. 



F. S. Dep. : Frank Springer deposit collection in the United States Na- 



tional Museum. 



G. M.: Graz University Museum. 



I. M. : Indian Museum, Calcutta, India. 



K. M.: Christiania Museum. 



L. M. : Leyden Museum. 



L. S.: Leland Stanford Junior University Museum. 



L. U. : University of Liverpool Museum. 



M. C. Z.: Museum of Comparative Zoology, Cambridge, Massachusetts. 



M. M.: Museum fur Meereskunde, Berlin. 



M. O.: Occanographic Museum, Monaco. 



P. A.: Museum of the Philadelphia Academy of Natural Sciences. 



P.M.: Paris Museum. 



R. T. J.: Collection of Prof. Robert Tracy Jackson, of Cambridge, Mas- 



sachusetts. 



S. Z.: Collection of the Naples Station. 



U. C.: University of California collection. 



U. S. B. F., W.: Collection of the United States Bureau of Fisheries, at Woods 

 Hole, Massachusetts. 



U. S. B. F., B.: Collection of the United States Bureau of Fisheries, at Beau- 

 fort, South Carolina. 



U. S. N. M.: United States National Museum collection. 



V.: Collection of Prof. Addison E. Verrill, of New Haven, Con- 



necticut. 



W. A. M. : Collection of the Western Australian Museum and Art Gal- 



lery, at Perth. 



W. M. : Vienna Museum. 



Y. M.: Peabody Museum, Yale University, New Haven, Connecticut. 



INDIVIDUALS AND INSTITUTIONS TO WHICH THE AUTHOR IS INDEBTED. 



There only remains the pleasant duty of expressing my gratitude and offering 

 my most sincere thanks to those who have so kindly aided me in my work with 

 information and with specimens: Mr. Alexander Agassiz, of Cambridge and New- 

 port; Dr. Nelson Annandale, of the Indian Museum, Calcutta; Prof. A. Appell0f, of 

 Upsala, Sweden; Dr. F. A. Bather, of the British Museum (Natural History); Prof. 

 F. Jeffrey Bell, of the same institution; Mr. Herbert Clifton Chadwick, of Port 

 Erin, Isle of Man; Dr. Hubert Lyman Clark, of the Museum of Comparative Zoology, 

 Cambridge, Massachusetts; Prof. Ludwig Doderlein, of Strassburg, Germany; 

 Prof. Franz Doflein, of Munich, Bavaria; Dr. Robert Etheridge, of the Australian 

 Museum, Sydney, New South Wales; Mr. George T. Farran, of Dublin, Ireland; 

 Prof. Walter K. Fisher, of Stanford University, California; Prof. Theodore N. Gill, 

 of Washington; Dr. James A. Grieg, of Bergen, Norway; Prof. Robert Tracy Jack- 

 son, of Cambridge, Massachusetts; Dr. Robert Hartmeyer, of the Museum fur 

 Naturkunde, Berlin; Mr. Samuel Henshaw, of the Museum of Comparative Zoology; 

 Prof. W. A. Herdman, of Liverpool, England; Dr. R. Horst, of Leyden, Holland; 



