BATHYPELAGIC SQUID BATHYTEUTHIS 5 



cephalopod collections at the Woods Hole Oceanog:raphic Institute. 

 W. Clench and G. Mead gave access to the cephalopod specimens in 

 the Museum of Comparative Zoology at Harvard. N. Tebble, Curator 

 of Molluscs at the British Museum (Natural History), provided fa- 

 cilities for studying the type of Bathyteuthis ahyssicoki Hoyle, 1885. 

 Cephalopod material collected during the Dan/i expeditions is avail- 

 able at the Institute of Marine Sciences through the Carlsberg Founda- 

 tion, E. Bertelsen, Director. Specimens collected by U.S. Bureau of 

 Commercial Fisheries vessels are on deposit at IMS through H. Bullis, 

 Pascagoula, Mississippi. R. E. Young, IMS, loaned material of a new 

 species from the VeJero collections in California waters. E. McSweeny, 

 W. Herrnkind, J. Walsh, and G. Hendrix of IMS participated in 

 EUanin cruises to collect material and make observations of Antarctic 

 cephalopods. T. E. Bowman, U.S. National Museum, brought the quote 

 by Sandburg to my attention. I am most grateful to all of these people 

 and institutions for their aid. 



Several members of the faculty at IMS read all or portions of the 

 manuscript and gave helpful suggestions. I am indebted to A. J. 

 Provenzano, C. R. Robins, F. M. Bayer, J. Fell, L. P. Thomas, L. J. 

 Greenfield, S. Broida, and E. S. Iverson. 



I am especially grateful to G. L. Voss for his suggestions and en- 

 couragement througliout this work, for the stimulation he has provided 

 by his continuous interest in and support of my studies, and for his 

 review of the manuscript. 



Long discussions with R. E. Young have been particularly valuable; 

 I appreciate his suggestions and enthusiasm for this work. 



The illustrations of Bathyteuthis are the skillful work of Miss Con- 

 stance Stolen; her patience and percept iveness result in precise rendi- 

 tions of the material. I am most grateful for her assistance. 



My wife, Ingrid, has compiled and plotted data, assisted in trans- 

 lations, and prepared the graphs and charts for reproduction ; for this 

 and for her encouragement I am grateful. 



Material and Methods 



Most specimens used in this study were taken by the USARP vessel 

 Elt'finm., but material was available from other sources as well. Speci- 

 mens are referred to by ship and station number in the text and figures. 

 The following list gives the sources of material by ship and by geo- 

 graphic area, and an example of the abbreviation of the reference 

 number (ship and station) . 



