582 



PROCEEDINGS OF THE NATIONAL MUSEUM 



(Species with A-1 carotid) 



Lorius roratus (P. L. S. Miiller) 

 Tanygnathus lucionensis (Linn6) 

 Psittacula longicauda longicauda (Bod- 



daert) 

 Psittacula longicauda tytleri (Hume) 

 Polytelis anthopeplus (Lear) 

 Alisterus scapularis (Lichtenstein) 



Agapornis cana (Gmelin) 

 Agapornis cana ablectanea Bangs 

 Agapornis taranta (Stanley) 

 Agapornis fischeri Reichenow 

 Agapornis personata Reichenow 

 Agapornis lilianae Shelley 

 Loriculus beryllinus (J. R. Forster) 

 Loriculus galgulus (Linn6) (2) 

 Melopsittacus undulalus (Shaw) (2) 



Order CUCULIFORMES 



Carotids chiefly A-1, but A-3, A-4, and A-3-s/A^-d also observed; 

 type A coracoid artery; type 1 thoracic artery; ligamentum aortae 

 present, but may be reduced; ligamentum botalli usually lacking, or 

 much reduced when present; vertebrals and superficial cervicals vary 

 in origin from the common carotid arteries. 



References: Bhaduri and Biswas, 1945; Garrod, 1873; Glenny, 

 1941b. 



Family Musophagidae 



Vertebrals and superficial cervicals have separate points of origin 

 from the common carotid arteries; an accessory oesophageal artery 

 arises as a branch from the left common carotid artery or from the 

 left superficial cervical artery. 



Both the ligamentum aortae and the ligamentum botalli are promi- 

 nent in Tauraco leucotis donaldsoni, whereas in Tauraco macrorhynchus 

 verreauxii and Crinifer leucogaster the ligamentum aortae is much 

 reduced and the hgamentum botalli is absent. 



Species studied 



By Garrod 



Musophaga violacea Isert 



Corythaix albocristala= Tauraco cory- 



thaix (Wagler) 

 Schizorhis africana= Crinifer africanus 



(Latham) 



By Glenny 



Tauraco leucotis donaldsoni (Sharpe) 

 Tauraco macrorhynchus verreauxii 



(Schlegel) 

 Crinifer leucogaster (Riippell) 



Family Cuculidae 



Carotids A-1, with but a few exceptions (see list of species below). 



Bhadm-i and Biswas (1945) reported that both left and right as- 

 cending oesophageal arteries arise in common with the superficial 

 cervical (comes nervi vagi) arteries as a branch of the vertebrals in 

 Eudynamys scolopaceas, and the ascending oesophageal is shown to 

 connect anteriorly with the cephalic external carotids. This is further 

 evidence that the ascending oesophageal arteries are functionally 



