THE CLASSIFICATION OF BIRDS. 279 
stitute the family Cygnide, while the Ducks* form that called 
Anatide. The sixth family Fuligulidw is one of which the 
Harlequin Duck is a type. The family Hrismaturide is one 
containing only about nine species, and takes its name from a 
genus which ranges from Southern Europe to the West Indies, 
Chili, the Auckland Islands, South Africa, and Australia. The 
eighth family is termed Mergide, from the Goosander’, which, 
with allied forms, is included within it. The ninth and last 
family Palamedeide takes its name (as does the suborder which 
contains it) from that curious Horned Screamer’ of South 
America, which it seems we must regard as a much modified 
arboreal form of Goose. 
The sixteenth order, that named Jimpennes, is a small but very 
peculiar one, of but 19 species, in which the following characters 
are to be observed :— 
Order XVI. IMPENNES. 
First and second digits of the hand fused together in the 
adult condition ; three metatarsals, very short and separated by 
deep grooves their whole length ; no quill-feathers in the wing ; 
palate schizognathous ; young born helpless, and covered with 
down; spinal feather-tract not defined on the neck ; no power 
of flight ; coracoids very large and strong ; scapula broad. 
In this order there is but a single family, whereof the King 
Penguin * is a type, and which may be therefore termed Aptenc- 
dytide. 
The seventeenth order, Crypturi, is twice as numerous as the 
preceding one. It has the following characters :— 
Order XVII. CRYPTURI. 
Keel of sternum well developed as usual, but placed on a 
very narrow median xiphoid process ; two narrow xiphoid pro- 
cesses on either side of it; ilium and ischium connected by 
cartilage behind the acetabulum; vomer coalescing with the 
te 14. Zab. AG: LEY =P 24. 
