308 
ON THE CLASSIFICATION OF BIRDS. 
shorter than the anterior, (^fig. 278.) Neck slender. 
Tropical America only. 
C.rubiginosus. Z. I.i. pi. 14. macrocephalus. Spix, 53. f. 2. 
Dryotomus, Sw. Lateral ridge nearer to the culmen 
than to the margin. Bill very straight, widened on 
the sides, and broader than it is high. {fig. 279.) 
Versatile toe much shorter than the anterior. Ame- 
rica and Europe. Plumage black and white : repre- 
senting Pirns. 
D. pileatus. Wilson, pi. 29. f. 2. lineatus. Spix, pi. 48. 
Clirysoptilus, Sw. Lateral ridge slight, very close to the 
culmen, which is somewhat curved. Versatile toe 
as long as the anterior. Tropical America. 
C. Cayennensis. P. Enl. 613. guttatus. Sp. i. pi. S3, f. 1. 
Cainpestris. Spix, pi. 46. 
Malacolophus, Sw. Ra-sorial Woodpeckers. Versatile 
toe shorter than the anterior. Culmen curved. The 
lateral ridge (except in the typical group) wanting. 
Tarsus shorter than the versatile toe. Hind head 
with a crest of very soft feathers. 
Brachylophus, Sw.* Nostrils covered. Neck thick. 
Bill widened its whole length. Under mandible 
thickened at the base, with one or more slightly ele- 
vated lines (representing the lateral ridge) close to 
the culmen, which is arched. Gonys very short. 
Hind head with a shortened, narrow, pointed crest. 
Versatile and anterior toes nearly equal. Tarsus 
shorter. The Old World only. Rasorial. 
B. viridis. Selby, pi. 38. occipitalis. Gould,Cent. pi. 47. 
canus. Edwards, 65. squamatus. lb. 48. 
miniatus. Auct. diinidiatus. PI. Col. 501. 
♦ Connected to Chrys(yptUm\)y S. puniceus^nnA to Chrysonotus by B. he^ 
mipodius {Bengaknsia Auct.)* which completes the circle. 
