AORTIC ARCHES OF BIRDS — GLENNY 591 



Families Leptosomatidae and Brachypteraciidae 



No informatioji is available. 



Family Coraciidae 



Carotids A-1 ; type 1 thoracic artery; presence of the ligamentum 

 botalli is variable; origin of vertebrals and superficial cervicals variable, 

 although these vessels tend to have a common root from the common 

 carotid arteries. 



Species studied 



By Garrod 



Coracias garrulus Linn^ 

 Eurystomus sp. 



By Glenny 



Coracias caudata Linn6 

 Eurystomus orientalis (Linn6) 



Family Upupidae 



Carotids B-4-s; type 3 thoracic artery; ligamentum botalli reduced 

 to a linea botalli; vertebrals and superficial cervicals have a common 

 root from the common carotids. 



Species studied 



By Garrod 

 Upupa epops Linnd 



By Glenny 



Upupa epops epops Linn6 

 Upapa epops africana Bechstein 



Family Phoeniculidae 



Carotids B-4-s; type 2 thoracic artery; ligamentum botalli reduced 

 to a linea botalli; vertebrals and superficial cervicals arise separately 

 from the common carotids; an accessory oesophageal artery arises 

 as a branch of the left carotid artery. 



Species studied 



By Glenny 



Phoeniculus purpureus erythrorhynchos (Latham) 



Family Bucerotidae 



Both bicarotid and unicarotid arrangements occur (see list of 

 species below); type 1 thoracic artery; ligamentum botalli usually 

 present, but may be reduced or lacking in some species; there is con- 

 siderable variation in the cervical arteries, but the vertebrals and 

 superficial cervicals appear to arise separately from the common 

 carotid arteries; the left superficial cervical generally sends ofT an 

 accessory oesophageal artery. 



