133 
Face and a broad stripe over the eye buffy white ; ear-coverts and 
crown of the head brown; feathers of the sides and back of the neck 
rich chestnut, margined on each side with white; feathers of the 
upper part of the back rich chestnut, margined with slate-grey ; 
breast grey, with a stripe of reddish chestnut in the centre of each 
feather ; back dark greyish brown, very minutely freckled with black ; 
wings brown, freckled with buff and black ; primaries deep rust-red ; 
tail dark brown, freckled with buff and black; irides clear brown ; 
feet red; bill black. 
Total length, 134 inches; bill, 8; wing, 73; tail, 6; tarsi, 23. 
Hab. Coban, Central America. 
In the collection of the Earl of Derby. Another specimen, in the 
museum of the Jardin des Plantes, is somewhat larger and brighter 
in colour than the one here described. 
Ortyx rascratus, Natt. MS. O. cinereus, alis corporeque subtas, 
fulvo, nigrescenti-fusco, et albo fasciatis. 
Forehead reddish brown; crest deep brownish black, tipped with 
reddish brown; chin greyish white; ear-coverts brown; sides and 
back of the head light brown, minutely freckled with darker brown 
and white; all the upper surface greyish brown, minutely freckled 
with darker brown and white, the coverts and scapularies passing 
into black towards the extremity of each feather, and crossed at the 
tip with a narrow band of buff; tail similarly marked, but browner 
than the upper surface and crossed by numerous freckled irregular 
double bars of dark brown and greyish white ; primaries brown, with 
lighter edges; all the under surface brownish black, each feather 
crossed at the tip with a broad band of pure white, which, becoming 
gradually wider on the centre of the abdomen, leaves that part white ; 
on the breast the white marks are very faint, and the feathers are 
tinged with rufous; thighs buff; under tail-coverts light buff, with 
two blackish brown spots down the centre of each feather ; bill black ; 
feet flesh-colour. 
Total length, 84 inches; bill, 3; wing, 44; tail, 3; tarsi, 1}. 
Hab. California. 
In the collections of the Royal Museum at Brussels and of His 
Highness the Prince Massena, to whose kindness I am indebted for 
the loan of the specimen here described. 
For this species, perhaps the most interesting of its family, I can- 
not do better than retain the specific appellation proposed for it ina 
letter lately received from him by my late much-valued and lamented 
friend Mr. John Natterer of Vienna, whose talents as a naturalist 
are too well known to require any eulogy from me. 
Ortyx teucotis. O. facie, cristd, et plumis auricularibus albis, 
fusco leviter tinctis, guld saturate castaned, colli utroque latere 
strigd splendide castaned nigro punctatd, ornato ; corpore subtis 
castaneo, albo distincté guttato, presertim apud pectus atque 
latera. 
Adult Male.—F ace, crest and ear-coverts white, slightly tinged 
with buff; throat dark chestnut; stripe from over the eye down each 
