264 BLEMBNTS OP OBNITHOLOGT. 



The suborder Eurylwmi contains two families, those of the 

 Green Broadbills, or Cah/ptomenidcB, and those of the Broad- 

 bills ^ par excellence, the Eurylcemidce, 



The suborder of Humming-birds, Trochili, contains but a 

 single family, Frochilidce °, and subfamily Trochilince. 



The second order, Coraciiformes, contains probably more than 

 523 species, including the Kingfishers, Swifts, and Hombills, 

 with their allies, and these, again following Mr. Seebohm, we 

 group in three, suborders, namely, (1) Coracioe, (2) Hatcyones, 

 and (3) Bucerot^. 



The characters of these groups may be thus stated : — 



. Order II. COEACIIFOEMES. 

 Hallux present and connected with the flexor longus digi- 

 torum, and not with the flexor longus hallucis ; plantar tendons 

 not free ; no ambiens ; young born nearly naked ; wing- 

 coverts large ; anterior toes united together at the base for some 

 distance ; outer toe a little shorter than the middle one, and 

 with three joints ; inner (or second) toe either joined to the 

 middle one for some distance, or absent ; bill long and tapering ; 

 nostrils basal, above the middle of the mandible ; tongue not 

 extensile. 



Suborder 1. Coracice. 



Spinal feather-tract well defined on the neck, but forked on 

 the upper back; oil-gland generally present but not tufted; 

 palate variously formed ; a semitendinosus present (except in 

 the Swifts) ; caeca present (except in the Swifts) ; basipterygoid 

 processes ' sometimes present ; manubrium not generally forked ; 

 sternum * never perforated for coracoids, save in the Meropidce, 



Suborder 2. Haleyones. 



Spinal feather-tract well defined on the neck and not forked 



on the back ; oil-gland always present and generally tufted ; 



^ P. 77. ' ' P. 100. 



' See ante, p. 184. * See ante, p. 178. 



