PROCEEDINGS 345 



is possible that the deep sea fauna can be spHt according to dif- 

 ferences in pressure, i.e. variation in pressure at the slopes rather 

 than differences in temperature. 



Dr. Gosline: I found that the fishes in the high island are similar to 

 those found in the coral reefs and in the low islands. However, 

 I found that in high islands with low water temperatures the spe- 

 cies of fishes are poorer. 



Dr. ScHULTz: I have noticed the relationship of fishes in the different 

 provinces. As the distance gets farther for wide ranging species, 

 there is a considerable difference in morphology and color distinc- 

 tions. In different fish populations the colors vary widely. For 

 example with reference to eels the use of the color for differentia- 

 tion is very difficult to apply in the field. 



Dr. Panikkar: It is interesting that prawn is marine in the Mediter- 

 ranean but is estuarine in India and fresh water in China and 

 Japan. They belong to the same species but differ physiologically. 

 Another example is Arenicola, which was recently found in the 

 Gulf of Bombay. 



Dr. Hiatt: I hope that we are not confusing here ecological conditions 

 and biological distribution. We may find new arrivals of animals 

 in certain localities but we should not discuss these animals im- 

 ported by men, i.e., those that had not existed in that locality 

 before. 



Dr. Harry: I observed that the faunas in the Atoll area are different 

 from those in Hawaii, i.e., where the land shelf drops fast, and that 

 similar atolls have similar fishes. 



Dr. Bolin: Rough shore and sandy beaches are different. Differences 

 in habitat in a biological province are not so important but the 

 similarities of fauna in high island and coral atoll are important. 



Mr. Powell: This symposium stimulates more interest along the line 

 of biogeographic distribution. Gentlemen, we have to conclude 

 this part of the session. When I say this part of the session, I am 

 referring only to the official presentation on the subject today, for 

 I am sure sufficient materials have been presented today to be the 

 subject of wide and lengthy discussions for a long time to come, 

 and I am very thankful indeed to all of you for your splendid 

 response to this symposium which I had the gi'eat pleasure of or- 

 ganizing. Thank you very much. 



The symposium adjourned at 4:30 in the afternoon. 



