296 
GEOGRAPHICAL ZOOLOGY. 
[part IV. 
to the temperate sub-region ; species occur in the islands of 
Mas-a-fuera, Trinidad, and Tobago. 
Sub-family IV. Philydoriile (6 genera, 35 species). Con- 
fined to Tropical America from Brazil to Mexico ; 4 genera and 
8 species occur in Tropical North America. 
Sub-family V. I)endrocolaptt.n/e (14 genera, 59 species). 
Ranges from Chili and La Plata to Mexico; only 3 species occur in 
the South Temperate sub-region, while 9 of the genera extend into 
Tropical North America. Two of the continental species occur 
in the island of Tobago, which, together with Trinidad, forms 
part of the South American rather than of the true Antillean 
sub-region. 
Family 45. — FOPMICARIIDAE. (32 Genera, 211 Species.) 
General Distribution. 
Neotropical 
Sub-regions. 
Nearctic 
Sub-regions. 
Pa las arctic 
Sub-regions. 
Ethiopian 
Sub-regions. 
Oriental 
Sub-regions. 
Australian 
Sub-regions. 
— 2.3 — 
The Formicariidm, comprising the Bush-Shrikes and Ant- 
thrushes, form one of the most exclusively Neotropical 
families ; and the numerous species are rigidly confined to the 
warm and wooded districts, only a single species extending to 
La Plata, and none to the Antilles or to the Nearetic region. 
Less than 30 species are found north of Panama. Messrs. 
Sclater and Salvin divide the group into three sub-families, 
whose distribution may be conveniently treated, as- in the Den- 
drocolaptidse, without enumerating the genera. 
Sub-family I. THAMNOPHlLifL®. — (10 genera, 70 species.) One 
species of Thamnophiftis inhabits La Plata ; only 3 genera and 
12 species are found north of Panama, the species of this 
sub-family being especially abundant in the Equatorial forest 
districts. 
Sub-family II. Formicivorieae. — (14 genera, 95 species.) Only 
8 species occur north of Panama, and less than one-third of the 
species belong to the districts south of the Equator. 
