196 LAKIDJS. 



2. Mauritius. Sir E. Belcher [P.]. 



3. South Audamans, June (-R. /. Saunders Coll. 



Wimberley). 

 28. Nicobar Islands (iJ. J. Wimberley). Hume Coll. 

 9. Bird and Piper's Islands, N.E. Voy. H.M.S. ' Rattlesnake.' 



Australia {J. MacgiUivray). 

 2. Piper's Island, 26th Sept. (J. Go^jld Coll. 



MacgUliway). 



Sterna trudeaui, Auduh. 

 (Plate XV. fig. 7.) 



Sterna trudeauii, Baird, Brewer 8r JRidgw. Water Bh-ds N. Am. ii. 

 p. 290 (1884) ; Holland, Ibis, 1890, p. 428 ; 1892, p. 212 ; Saunders, 

 P. Z. S. 1891, p. 373 ; id. Cat. Birds B. M. xxr. p. 130 (1896). 



Sterna trudeaui, 8hm-pe, Hand-l. i. p. 137 (1899). 



Of the three eggs of Trudeau's Tern in the Collection, two are of 

 a long, narrow, oval form, and one is a broad, but pointed, oval. The 

 ground-colour is olive-buff, and the surface-markings are of a 

 chocolate or blackish-brown. In one example they consist chiefly of 

 large smears and blotches; in the other two, of spots and small 

 blotches, distinct and well defined. At the larger end there are a 

 few scrolls and twisted lines. The underlying markings are of a 

 pale purple dolour. The three specimens measure respectively ; 

 1-63 by 1-2 ; 1-82 by 1-17 ; 1-75 by 1-23. 



3. Argentine Republic, Nov. A. H. Holland, Esq. [C.]. 



Genus PROCELSTEENA, Lafresn. 



Procelsterna caerulea {F. D. Bennett). 



(Plate XV. fig.- 2.) 



Anous cinerea, apud Finsch, 8f Sartl. Fauna Central-polyn. p. 239, pi. iv, 



figs. 4, 5 (1867). 

 Anous csBruleus, MacFarlane, Ibis, 1887, p. 213 ; Lister, P. Z. 8. 1891, 



pp. 296, 300. 

 Procelsterna cserulea, Sawnders, Cat. Birds B. M. xxv. p. j.33 (1896) ; 



Sharpe, SandA. i. p. 137 (1899). 



The eggs of the Blue Noddy are reprebented in the Collection by 

 only three specimens. Of these, two are quite similar to the eggs of 

 P. cinerea described below, but are smaller. The third is of a 

 pinkish-buff colour marked with a very few scattered reddish- 

 brown spots, except at the apex of the broad end, where the spots 

 are thickly disposed and are intermingled with some hieroglyphic- 

 like lines. The three eggs measure respectively : 1-4 by 1'07 ; 1'5 

 by 1-03; 1-48 by 1-03. 



1. Christmas Island, Pacific Ocean, Saunders Coll. 



7th Oct. (J. a. H. MacFarlane, 

 It.N.). 



2. Canton Island, Phoenix Group, J. J. Lister, Esq. [P.]. 



Pacific Ocean, July. 



