488 BULLETIN 50^ UNlTEiD STATES NATIONAL MUSEUM. 



— Caprimulgi Ridgway, BulL Ills. State Labr. Nat. Hist., No. 4, May, 1881, 

 185. — Shufeldt, Proc. Zool. Soc. Loud., 1885, 913; Linn. Soc. Journ., Zool., 

 XX, 1888, 299.— FuERBRiNGER, Unters. Morph. Syst. Vog., ii, 1888, 1567.— 

 SALViNand Godman, Biol. Centr.-Am., Aves, ii, 1892, 382. — Gadow, Bronn's 

 Thier-Reich, Vog., ii, 1891, 241, 301; Classif. Vertebr., 1898, xv, 36 (sub- 

 order). — Beddard, Struct, and Classif. Birds, 1898, 231. — Knowlton, Birds 

 of the World, 1909, 50. 



'^Coracoidese Stejneger, Stand. Nat. Hist.,iv, 1885, 371, 384, in text (includes 

 Coracise). 



<^Caprwiulgidae Cabanis, in Wiegmann's Archiv fiir Naturg., i, 1847, 346 

 ( =Caprimulgi+Steatornithes) . 



<^Capnmulgidae Cabanis and Heine, Mus. Hein., iii, 1860, 80 (=Caprimulgid8e-t- 

 Ny ctibiidse -f- Steatornithidse) . 



<^Steatorninae Cabanis, in Wiegmann's Archiv fiir Naturg., i, 1847, 346 (=Stea- 

 tomithes+Nyctibiidse). — Bonaparte, Consp. Av., i, 1850, 57 (=Steator- 

 nithidae+Podargidag+Nyctibiidae). 



<:^Steatornithinae Bonaparte, Consp. Av.,i, 1850, 57 (=Steatornithes+Podargi+ 

 Nyctibiidse). 



Synpelmous, anisodactyle Coraciiformes with flexor tendons of 

 type Va (as in Macrochires), spina externa sterni vestigial, two 

 carotid arteries, syrinx bronchial, and young ptilopsedic (as in 

 Striges). 



Palate schizognathous (Caprimulgi, except Chordeiles) or desmog- 

 nathous {Chordeiles, Podargi, and Steatornithes) ; basipterygoid 

 processes present (but small) or absent (in Podargi) ; nares holorlii- 

 nal; vomer present; metasternum 2-notched, 4-notched, or entire; 

 spina interna sterni absent; coracoids separated; ectepicondyloid 

 process of humerus small, terminal; hypotarsus complex; cervical 

 vertebrae 13-14; two carotid arteries; caeca functional, large (appar- 

 ently absent in genus jEgotheles of Podargidas) ; myological formula 

 AXY or (in Steatornithes) XY; intestinal convolutions of type VI; 

 flexor tendons of type Va; spinal pteryla well-defined on neck, 

 forked on upper back; aftershaft present but small; oil-gland (when 

 present) nude; secondaries aquinto-cubital ; primaries 10; rec trices 

 10; adult downs present but restricted to apteria; young ptilopaedic 

 (as in Striges). 



KEY TO THE SUPEBFAMILIES OF NYCTICORACI/E. 



a. Dorsal vertebrae heterocoelous (saddle-shaped); palatines separated medially, 

 expanded posteriorly, and with latero-posterior processes; rostnim fixed; myo- 

 logical formula AXY. 

 b. Palate schizognathous (except in Chordeiles); a. palatines very narrow or 

 slender anteriorly, enormously expanded posteriorly; vomer truncated ante- 

 riorly; premaxillary relatively small, constituting much less than anterior 

 half of skull, not completely ossified (i. e., with a pair of latero-median grooves 

 or fossae), strongly contracted anteriorly, with straight or slightly concave 

 lateral outlines; basipterygoid processes present; oil-gland present. 



Caprimulgi (p. 489). 



" And probably other Chordeilinae. 



