PROCEEDINGS 339 



sea and pelagic faunas would probably require separate consideration. 

 Both these points were affirmed by other contributions and endorsed 

 by several speakers. Two slides and a full page map were presented. 

 A question in methodology was brought up but it was suggested that 

 it be taken up in the afternoon discussions. 



The next paper, "An Outline of the Distribution of Pacific Deep- 

 Sea Animals", was presented by Dr. Anton Fr. Bruun, Denmark. It 

 covered the deep areas at and below 2,000 meters and described the 

 Pacific Abyssal and abysso-pelagic fauna as part of a cosmopolitan deep 

 sea fauna. The suggested subdivisions of the deep sea faunas were 

 (1) Pacific and (2) Atlantic-Indian Ocean from which an Antarctic 

 region may be separable. Slides showing specimens of deep-sea species 

 accompanied the presentation of the paper. 



Dr. Rolf L. Bolin, California, on "Deep-Water Biological Provinces 

 of the Indo-Pacific", based his classification on the Archibenthic fish 

 family, Macrouridae, which occur within a 200—2,000 meter range. It 

 discussed myctophids and bathymetric fishes as indicators of biological 

 provinces in the Indo-Pacific. Dr. Bolin's suggested provinces were 

 fewer, of larger scope, and were obviously not delimited by the same 

 factors that gave rise to the shallow-water provinces. The author spe- 

 culated on the existence of other marine biological provinces as indi- 

 cated by fishes and other marine fauna, but suggested more compre- 

 hensive and detailed investigations before drawing conclusions. There 

 was agreement, however, in the recognition of a Hawaiian Province. 



Professor Martin W. Johnson of Scripps Institution of Oceanography, 

 in "Some Outlines of Plankton Concentration in the Eastern and Tro- 

 pical Pacific", dealt with surveys involving marine plankton distribution 

 along this west coast of North America and in some parts of the tropical 

 Pacific. The surveys were made by different scientific institutions in 

 connection with the California Cooperative Sardine Research Program. 

 The discussion related to the constitution of the plankton found in 

 western Indonesia and also that found near the California coast. Dis- 

 cussion follows: 



Dr. Hardenberg: May I ask whether you can tell us about the com- 

 position of the plankton? 

 Dr. Johnson: They are mostly edible diatoms, Rhizosolenia, and are 



substantially not dinolagellates or watery planktons as Salpa. 

 Dr. Hardenberg: In Western Indonesia, there are few diatoms in the 



plankton. They are mostly Peridinium and watery organisms. 

 Dr. Johnson: We need more work on plankton. We should give em- 

 phasis to knowing what we are working on. 



