IDUNA. 205 



Hypolais salicaria, Lilford, Ibis, 1866, p. 187. 



Ficedula polyglotta, Saunders, Ibis, 1871, p. 213. 



The eggs of the Melodious Tree-Warbler do not differ in any 

 respect from those of H. hypolais. 



5. [Spain.] Crowley Bequest.^ 



4. Spain. Lord Lilford [P.]. 



5. Malaga, Spain, 18th May (A. Seebohm Coll. 



Ruiz}. 



3. Malaga, 25th May (A. R.\ Seebohm Coll. 

 5. Malaga, 31st May (A. R.). Seebohm Coll. 

 5. Malaga, 12th June (A. R.}. Seebohm Coll. 

 5. Malaga, 25th June (A. R.). Seebohm Coll. 



4. Malaga, 16th May (H. Saunders}. Seebohm Coll. 

 3. Malaga, 24th May (H. S.). Seebohm Coll. 



3. Malaga, 26th June (H. S.). Seebohm Coll. 



4. Seville, Spain (H. S.). Seebohm Coll. 

 4. Seville (H. S.). Seebohm Coll. 



2. Seville (H. S.}. Seebohm Coll. 



4. Chemora, Algeria, 26th May (0. Salvin-Godman Coll. 

 Salmn). 



3. Chemora, 27th May (O. S.}. Salvin-Godman Coll. 



1. Chemora, 29th May (O. &). Salvin-Godman Coll. 



4. Chemora, 1st June (O. &). Salvin-Godman Coll. 



2. Chemora, 2nd June (O. S.). Salvin-Godman Coll. 

 1. Chemora, 8th June (O. S.\ Salvin-Godman Coll. 

 7. Chemora, 26th May (H. B. Tris- Crowley Bequest. 



tram). 



Genus IDUNA, Bonap. 

 Iduna olivetorum (Gould). 



Sylvia olivetorum, Thien. Fortpflanz. ges. Vog. p. 171, tab. xix. fig. 14, a-c 



(1845-54) ; Bree, Birds Eur. ii. p. 49, pi. (1867). 

 Chloropeta olivetorum, Baedeker, Eier Eur. Vog. tab. 19. fig. 3 



(1855-63). 

 Hypolais olivetorum, Dresser, Birds Eur. ii. p. 527 (1874) ; Bree, Birds 



Eur. 2nd ed. ii. p. 141, pi. (1875) ; Seebohm, Cat. Birds B. M. v. 



p. 79 (1881). 

 Iduna olivetorum, Sharpe, Hand-l. iv. p. 208 (1903). 



The eggs of the Olive-tree Warbler are of quite the same cha- 

 racter as those of Hypolais liypolais and H. polyglotta, but they are 

 larger and have the ground-colour rather paler. It is noteworthy, 

 however, that in the comparatively large series of the eggs of 

 this species in the Collection, not one shows any indication of the 

 cobweb-like combination of fine lines frequently found on the eggs 

 of the other two species. At best there are only a few short 

 detached lines on a few examples. A series of specimens measures 

 from '8 to -85 in length, and from '55 to '6 in breadth. A remarkably 

 small egg measures only -67 by '53. 



1. Greece. Old Collection. 



5. Athens, 1st June (T. Krilper). Seebohm Coll, 



