Suborder FULICARIAE.

Schizognathous and holorhinal birds with heterocoelous vertebrae, and 14 or 15 cervical vertebras. The sternum has a single notch on each side of the posterior margin. Oil-gland tufted. Caeca well-developed. Besides the ambiens, the femoro-caudal, accessory femoro-caudal, and subtendinosus muscles are always present; the accessory subtendinosus is found in Rallidae, not in Heliornithidae.

Key to the Families.

Rectrices 10 to 14, usually 12; an aftershaft present……………………Rallidae, p. 157.
Rectrices 18; no aftershaft……………………Heliornithidae, [p. 181.

BookTitle: 
The Fauna Of British India, Including Ceylon And Burma-birds
Reference: 
Blanford, William Thomas, ed. The Fauna of British India: Including Ceylon and Burma. Vol. 4. 1898.
Title in Book: 
Suborder FULICARIAE.
Book Author: 
William Thomas Blanford
Year: 
1898
Page No: 
157
Volume: 
Vol. 4
id: 
1975

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