586 



PROCEEDINGS OF THE NATIONAL MUSEUM 



Family Caprimulgidae 



Carotids A-1; coracoid artery types A, B, and C occur (see list 

 of species below); ligamentum botalli may be complete, reduced, or 

 absent; vertebrals and superficial cervicals arise separately from the 

 comm-on carotids. 



Species studied 



By Garrod 



Chordeiles acutipennis texensis Lawrence 

 Caprimulgus europaeus Linne 



By Glenny 



Lurocalis semitorquatus (Gnielin) (A) 

 Chordeiles minor minor (J. R. Forster) 



(B) 

 Chordeiles minor vicinus Riley (B, C) 



Nydiprogne leucopyga (Spix) (C) 

 Poduger nacunda (Vieillot) (2) (A) 

 Nyctidromiis albicollis (Gmelin) (A) 

 Caprimulgus carolinensis Gmelin (C) 

 Caprimulgus longiroslris Bonaparte (B) 

 Scotornis fossii (Hartlaub) (A) 

 Semelophorus vexillarius Gould (A) 

 Hydropsalis hrasiliana furcifera (Vieillot) 

 (A) 



Order APODIFOEMES 



Both bicarotid and unicarotid arrangements occur, but the unicaro- 

 tid arrangement is of more frequent occurrence; coracoid artery types 

 A and E occur; type 1 thoracic artery; ligamentum aortae present; 

 ligamentum botalli usually absent but may be found in a few in- 

 dividuals; vertebrals and superficial cervicals generally have separate 

 points of origin from the common carotids, but usually are very close 

 together. 



References: Garrod, 1873; Glenny, 1953b. 



Family Apodidae 



Both bicarotid and unicarotid arrangements (see list of species 

 below); type A coracoid artery; ligamentum botalli absent. 



Species studied 



By Garrod 



Chetura caudacuta^=Hirund-apus cau- 



dacutus (Latham) (B-4-s) 

 Chetura vauxi^Chaetura vauxi (J. K. 



Townsend) (B-4-s) 

 Chetura spinicauda=Chaetura spini- 



cauda (Temminck) (B-4-s) 

 Cypseloides fumigatus (Streubel) (A-1) 

 Cypselus alpinus=Apus melba (Linne) 



(B-4-s) 

 Cypselus apus=Apus apus (Linn^) 



(B-4-s) 



By Glenny 



Collocalia inexpectata bartschi Mearns 

 (B-4-s) 



Streptoprocne zonaris pallidifrons (Har- 



tert) (A-1) 

 Streptoprocne zonaris albicincta (Cabanis) 



(2) (A-1) 

 Chaetura vauxi (J. K. Townsend) 



(B-3b-d) 

 Chaetura pelagica (Linn6) (3) (B-4-s) 

 Chaetura cinereiventris guianensis Har- 



tert (2) (B-3b-d) 

 Nephoecetes niger (Gmelin) (A-1) 

 Apus andecolus (d'Orbigny and La- 



fresnaye) (B-4-s) 

 A'eronautes saxatalis (Woodhouse) (3) 



(B-4-s) 

 Tachornis phoenicobia Gosse (B-3b-d) 



