38 Meetings of Section I. 



studying the Roseate Tern (Sterna dougalli) . It was, however, 

 much more numerous on the coast of France from Cherbourg 

 to Brest and southward, and bred in numbers on the islands 

 of Baunec, Kerourec, and Toulinguet, opposite Brest. It 

 arrived about the loth of May, commenced nesting about 

 the oth of June, and departed on the 10th of July, approxi- 

 mately. The eggs might be mistaken for those of Sterna 

 fluviatilis, but in more than 50 per cent, of cases he was able 

 to distinguish the eggs of the two species without hesitation. 



He exhibited the young in down of S. dougalli and other 

 allied species, and pointed out that the former might always 

 be recognised from the nestlings of S. fluviatilis and 

 S. macrura by the more mottled and less distinct pattern on 

 the down of the upper parts, as well as by their blackish feet. 

 In the young of S. fluviatilis and S. macrura, which closely 

 resembled one another, the feet were always pale orange. 

 This important distinctive character was pointed out for the 

 first time. 



Dr. Bureau mentioned that no examples of the young in 

 down of S. dougalli were to be found in the British Museum 

 collection, and that specimens so named were evidently 

 wrongly identified. 



3. Count von Berlepsch : — On new Neotropical Birds. 



Count von Berlepsch exhibited a large number of interest- 

 ing species from S. America, many of which were described 

 as new. 



Dr. Reichenow, on behalf of the Chairman, thanked 

 Count von Berlepsch for his most interesting exhibit, and 

 this terminated the proceedings. 



Wednesday, 14th Jmie. 



The President, Dr. P. L. Sclater, F.R.S., in the Chair. 



4. Count von Berlepsch : — The species of the genus 

 Elainea, 



This paper contained a revision of the species of the genus 

 Elainea. A list of the 40 species and subspecies admitted 

 was read, and examples were exhibited. 



