IDUNA. 205 



Hypolais salicaria, lAlford, Ibie, 1866, p. 187. 



Ficedula polyglotta, Saunders, Iks, 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. JR.). Seebohm Coll. 

 5. Malaga, 31st May {A. S.). Seebohm Coll. 

 5. Malaga, 12th June (A. B.). Seebohm Coll. 

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



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

 3. Malaga, 24th May {S. S.). Seebohm Coll. 



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



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

 4. Seville {S. S.). Seebohm Coll. 



2. Seville {S. S.]. Seebohm Coll. 



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

 Salvin). 



3. Chemora, 27th May (0. S.). Salvin-Godman Coll. 



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



4. Chemora, 1st June {0. S.). 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. Fortpjlanz. 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. iig. 3 



(1855-63). 

 Hypolais olivetorum. Dresser, Birds Eur. ii. p. 527 (1874) ; B7-ee, Birds 



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



p. 79 (1881). 

 Iduna olivetorum, Sharps, Sand-l. iv. p. 208 (1903). 



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

 racter as those of Hypolais hypolais and E. 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 Unes 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 •&! by "53 . 



1. Greece. Old Collection. 



5. Athens, 1st June (7". .firwi^er). Seebohm Coll. 



