Zoological Society. 341 



All are characterized by a uniforiu wash of colour on the under sur- 

 face, in lieu of the bars of rich red and black so conspicuous in the 

 true Pterofflossi. 



Andigena laminirostris. 



Crown of the head and back of the neck deep black ; upper sur- 

 face golden brown ; primaries black ; rump pale sulphur-yellow ; 

 upper tail-coverts very dark green ; tail dark slaty grey, four central 

 feathers largely tipped with chestnut-red ; under surface ashy blue ; 

 on either flank a large patch of rich yellow ; thighs deep chestnut ; 

 under tail-coverts blood-red ; orbits apparently orange ; culmen and 

 apical half of both mandibles black ; a broad band on the base of 

 the upper mandible and the basal half of the lower mandible deep 

 blood-red ; on either side of the upper mandible, immediately in front 

 of the blood-red basal band, is a large buff-coloured plate or lamina, 

 continuous with the structure of the bill at its base, but separate and 

 detached in front, thin on its upper edge, but thicker and projecting 

 beyond the edge of the mandible below ; feet slaty blue. 



Total length, 18 inches; bill, Sf; wing, 6f ; tail, 6f ; tarsi, \\. 



Hah. Neighbourhood of Quito. 



Remark. The only example I have seen belongs to the collection 

 of T. B. Wilson, Esq., of Philadelphia, and which has been kindly 

 lent to me by his brother Edward Wilson, Esq., to enrich my Mono- 

 graph of the Ramphastidce. 



Equally inexhaustible appear to be the Odontophorinse or Par- 

 tridges of America, for in the rich Museum of Ley den, I lately found 

 a species which was previously unknown to me ; it pertains to the 

 genus Odontophorus, and I propose for it the name of Odontophorus 

 Columbianus. 



Odontophorus columbianus. 



Crown of the head brown, minutely freckled with black ; back of 

 the neck washed with rufous ; over each eye an indistinct mottled 

 stripe ; throat white, irregularly spotted, especially on the sides, with 

 black ; upper surface brown, washed with grey on the centre of the 

 feathers, each of which is delicately pencilled with black, and has a 

 narrow stripe of buff, bounded on each side by a narrower one of 

 black, down the centre ; those of the scapularies and vring-coverts 

 have moreover a large patch of rich dark brown on the inner web 

 near the tip, bounded above by two narrow lines, one of buff, the 

 other of dark brown ; primaries brown ; secondaries brown, freckled 

 and barred with dark brown, and washed with rufous ; tertiaries 

 brown, washed with grey and rufous, freckled with black, having a 

 broad V-shaped mark of black near the tip, and broadly margined 

 and tipped internally with deep buff ; under surface reddish brown, 

 each feather with a large irregularly-shaped mark of white margined 

 with black near the tip ; under tail-coverts, and vent mottled reddish 

 brown and sandy huff; bill black ; feet lead-colour. 



Total length, 1 1 inches ; bill, 1 ; wing, 5f ; tail, 2J ; tarsi, 2 ; 

 middle toe and nail, 2\. 



Hah. Caraccas. 



Remark. — The fine specimen gracing the Museum at Leyden was 



