r52 LLOYD'S NATURAL HISTORY. 
For convenience the fourteen forms may be divided into two 
groups :— 
A. Chest and breast not spotted with white (species 1-8, 
pp. 152-158). 
ZB. Chest and breast spotted with white (species 9-14, pp 
158-161). 
A. Chest and breast not spotted with white. 
I. THE GUIANA PARTRIDGE. ODONTCPHORUS GUIANENSIS. 
Tetrao guianensis, Gmel. S. N. i. pt. il. p. 767 (1788). 
Perdix dentata, Temm. Pig. et Gall. iii. pp. 419, 734 (1815). 
Perdix rufina, Spix, Av. Sp. Nov. ii. p. 60, pl. 766 (1825). 
Odontophorus rufus, Vieillot, Gal. Oils. i. p. 38, pl. 211 
(1825). | 
Odontophorus guianensis, Gould, Moncgr. Odontoph. pt. 1. pl. 
25 (1844); Ogilvie-Grant, Cat. B. Brit. Mus. xxi. p. 432 
(1893). 
Adult Male and Female—Crown mostly deep chestnut ; nape 
and mantle grey, finely mottled with black ; lower back and 
rump reddish-brown, more or less dotted with black ; wings 
rufous, blotched and marked with black ; outer webs of primary 
quills barred with buff ; cheeks, chin, and sides of throat dark 
chestnut ; middle of throat grey; general colour of chest 
and rest of under-parts Jdrowaish-buff, indistinctly barred with 
dusky. Naked skin round eye vermilton. 
Adult Male-—Total length, 11°5 inches ; wing, 5’9; tail, 2°8 ; 
tarsus, 1°6; middle toe and claw, 1°8. 
Adult Female—Total length, 10 inches ; wing, 5°4; tail, 2°3; 
tarsus, 1°5 ; middle toe and claw, 1°6. 
Habits.—This species frequents the forests, and is never 
seen in the savannas or open country. It is a shy bird, and 
usually met with singly or in pairs, never in coveys, and, like 
he rest of its kind, runs with great speed, but when flushed be- 
