SYSTEMATICALLY ARRANGED BY DR. T. T. KAUP. 
According to the analogies which we observe in the class of 
birds, we have assigned the second rank to the Ornithes as an 
order, invariably for all times; we have further shown, that the 
Cuculidce, among the Zygodactylat ; the Longirostres among the 
Grallatores ; the Longipennes among the Ichthy ornithes ; the 
Columbidee among the Gallince , as a family or suborder, repre- 
senting the Siuallow type, must occupy the second rank, like the 
whole class of birds among the first subkingdom. We have among 
the Accipitres assigned the second rank to the family, Strigidce ; 
and from abstracted characteristics, we find that Nauclerus , and 
its whole subfamily, Milvinm , as well as the genera Tinnunculus 
(Faleonino e), Nisus ( Accipitrince ), Helotarsus (Aquilince), and 
Pernis ( Buteonince ) occupy the second rank.* 
In the first suborder, Conirostres, represented as the swallow 
type, the second family, Artamidce. 
The same type is represented by the family, Meropidce, among 
the Syndactyli. Long wings, with emarginations on the tip of 
each feather; the tail-feathers on the tip emarginated ; and the 
two middle feathers elongated. The whole family consist of eaters 
of insects. 
In the fourth suborder, Dentirostres, Cuv., the swallow type is 
represented by the second family Oriolidce , by the longest wings, 
very short tarsi, and being the best flyers.f 
In the fifth and last suborder, Tenuirostres is the swallow type, 
very clear in the second family Trochilidce. 
In other orders or families, the swallow type is not less clearly 
expressed. 
The second family Glareolidce , in the suborder, Pressirostres of 
the Grallatores. Very short secondaries, very long and pointed 
quill-feathers, forked tail, short feet, and very large and broad 
mouth; swift or strong flyers, and eaters of insects. 
Among the Brevipennes is the subfamily Apterycidce, from 
Australia, in the form of the bill (like the bill of Scolopax ) the 
bird-type not very clearly expressed. 
Among the Cultrirostres , Cuv., Kaup., this type is represented 
* From this position, it is evident that forms like Perms cuculoides, Nisus solcensis 
sive cuculoides, T., were compared with the cuckoos. These are analogies but dimly 
expressed, which partly gave birth to some names of species, 
t The true swallow type is hitherto not discovered. 
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