74 cypselidjE. 



Cypselus apus. Swift. 

 Hirundo Apus, Lmnmus, S. N. i. p. 344 (1766). 



Cypselus apus, Naum. vi. p. 123 ; Gray, p. 31 ; Yarr. ed. 2, ii. 

 p. 260 ; id. ed. 3, ii. p. 270 ; Newton, ii. p. 364 ; Gould, 

 ii. pi. 3 j Harting, p. 35; Dresser, iv. p. 583. 



Cypselus murarius, Macg. iii. p. 614 ; Hewitson, p. 267. 



Common Swift, Yarr. ed. 1, ii. p. 233. 



A common summer visitant throughout Great Britain and 

 Ireland, and also throughout the Palsearctic and northern 

 portions of the Oriental Regions ; winters in Africa. 



Cypselus melba. White-bellied Swift. 



Hirundo M elba, imw«MS, S. N. i. p. 345 (1766). 



Cypselus melba, Naum. vi. p. 115 ; Macg. iii. p. 611 ; Gray, 

 p. 31; Newton, ii. p. 372; Gould, ii. pi. 4; Harting, 

 p. 125 ; Dresser, iv. p. 603. 



Cypselus alpinus, Hewitson, p. 269 ; Yarr. ed. 2, ii. p. 266 ; id. 

 ed. 3, ii. p. 276. 



Alpine Swift, Yarr. ed. 1, ii. p. 239. 



Melba, of untnown (barbarous) origin. 



A rare straggler to England ; it has also occurred in Ireland, 

 but not in Scotland. It is found locally throughout Central 

 and Southern Europe and North Africa in summer, ranging 

 as far east as India, and in winter southward down to the 

 Cape colony. 



Genus ACANTHYLLIS, Boie, Isis, 1826, p. 971. 



Acanthyllis — aKav9v\\k, a bird mentioned by Aristotle, H. A. viii. 3, 9, 

 ix. 14, 2 ; probably JEgithalus penduUnus. Diminutive of aKavdh, axavda, a 

 thorn, from dsis = a point, referring to the tail-feathers of the present species. 



Acanthyllis caudacuta. Needle-tailed Swift. 



Hirundo caudacuta, Latham, Synops. Suppl. ii. 

 p. Ivii (1801) . 



Acanthylis caudacuta. Gray, p. 32. 



