. Catalogue of the Birds in the British Museum. Type. Adoplioneus, Kaup, Xatiiii. Syst. p. 28 (1829) .... S. orpheus. Monaclius, Kaup, Natiirl. Si/st. p. 33 (1829) S. atricapilla. Alssecus, Kaup, Natiirl. Syst. p. 108 (1829) S. subalpina. Thamnodus, Kaup, Natiirl. Syst. p. 109 (1829) .... S. proviucialis. Epilais, Kaup, Natiirl. Syst. p. 14o (1829) S. hortensis. Erythroleuca, Kaup, Natiirl. Syst. p. 153 (1829) . S. couspicillata. Nisoria, Bonap. Comp. List, p. 15 (1838) S. nisoria. Adornis, Gray, List Gen. B. p. 29 (1841) S. hortensis. Pyrophthalma, Bonap. Ucc. Eur. p. 37 (1842) ...
. Catalogue of the Birds in the British Museum. Type. Adoplioneus, Kaup, Xatiiii. Syst. p. 28 (1829) .... S. orpheus. Monaclius, Kaup, Natiirl. Si/st. p. 33 (1829) S. atricapilla. Alssecus, Kaup, Natiirl. Syst. p. 108 (1829) S. subalpina. Thamnodus, Kaup, Natiirl. Syst. p. 109 (1829) .... S. proviucialis. Epilais, Kaup, Natiirl. Syst. p. 14o (1829) S. hortensis. Erythroleuca, Kaup, Natiirl. Syst. p. 153 (1829) . S. couspicillata. Nisoria, Bonap. Comp. List, p. 15 (1838) S. nisoria. Adornis, Gray, List Gen. B. p. 29 (1841) S. hortensis. Pyrophthalma, Bonap. Ucc. Eur. p. 37 (1842) .... S. melanocephala. Stoparola, Bonap. Cat. Parzucl. p. 6 (1856) S. siibalpiaa. Philacautha, Swinhoe, P. Z. S. 1871, p. 355 ( Gloger) S. nisoria, Atraphornis, Severtz. Turkest. Jeootn. p. 05 (1873) .. S. Bill of Sylvia cinerea, Bechst. The genus Sylvia contains about a score species of birds closely allied to Phylloscopus, Acrocephalus, and Hypolais. In five of the species the bastard primary is so minute that it does not project beyond the primaiy-coverts, and in none does it project beyond those feathers more than 0"3 inch. The tail is nearly- even in two species, in three species the outside feathers are about O'l inch shorter than the longest, in four species about 0'2, in four species 0'25, in four species 0-35, and in one 0"4. The bill is shorter and less depressed at the base than in Phylhscopus, and the rictal bristles are only slightly- developed. The feet and tarsus are stout, and the latter is scutellated in front. The males of many of the species have black heads, and most of the species have -white on the outside tail-feathers. Most of tlie species have the tail shorter than the wing. In two species the tail is slightly longer than the wing, in another species more decidedly longer than the wing, and in two other species the tail is still more lengthened. The centre of dis- tribution of the genus is undoubtedly the basin of the Mediterranean, and
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