307 



upon the upper mandible, the boot* of which have eoaleaeed with the frontal. The pre- 

 fronul wiuU out a broad square antorhiul proceas, which coaleace* with the descending one 

 of the Ucrymal : the recurrent superorbital process of this bone is of great length. The port- 

 fronul presents a medium development, the mastoid a more feeble one : the paroedpitaU are 

 simple plate* bounding the back of the tympanic cavity. The cerebellum cauae* a ttrong 

 prominence at the middle of the occipital region. A tingle free dorsal vertebra intervene* 

 between fire coalesced donala and the sacrum. The furculum formt a wide arch and i* un- 

 usually broad : the sternum is broad, with two perforation*. The bony bridge crowing the 

 extensor tendon at the fore part of the distal end of the tibia extend* from the middle pro- 

 tuberance to above the outer rondy le ; not, as in most of the Galliiue and Grail*, to tin- 

 inner condyle. There is a distinct calcaneal ossicle behind the tartal joint, a* well a* tin- 

 strong and long calraneal proce** at the back of the anchylosed metatanal*. The short 

 metaursal of the back-toe present* a broad, well-developed, convex, articular surface for the 

 strong back-toe. 



Pretented by James Abernethy, 



1684. The skeleton of a Peregrine Falcon (Falco peregrin**). 



Of the 20 vertebrae between the skull and sacrum, the seren posterior bear moveable ribs, 

 of which the last five pain articulate with the sternum : the single pair of sacral rib* also 

 unite directly with the sternum. A single free dorsal vertebra intervene* between the five 

 anchylosed dorsal* and the sacrum. 



MM. South. 



1635. The skeleton of the Merlin (Falco ago/on). 



Of the 19 vertebra between the skull and sacrum, the seven posterior bear moveable ribs, 

 the hut five pairs of which unite with the sternum : there i* a angle pair of sacral ribs, which 

 also join the sternum, and support the h**mapophyse* of another pair. This skeleton pre- 

 sent* the same character* of the dorsal vertebra, sternum, and tibia, a* in the foregoing spe- 

 cie*, but the legs are longer and more slender in proportion to the wings. 



MM. South. 

 



1636. The skeleton of the Hobby (Falco tubbuteo). 



Of the 20 vertebrae between the skull and sacrum, the seven |>osterior bear moveable ribs, 

 the last four pair* of which unite with the sternum : there is one pair of sacral ribs, which 

 also unite with the sternum. The sternum present* two posterior perforations. A single 

 free dorsal vertebra intervene* between five coalesced dorsals and the sacrum. The omeou* 

 bridge at the fore part of the distal end of the tibia ha* two arches extending from the inter- 

 condyloid prominence, the one to above the external, the other to above the internal condyle. 

 The calcaneal bone* are preserved in this skeleton. 



Mu* South. 



1637. The skeleton of the Kestrel (Falco tiimunculut). 



Of the 1 9 vertebrae between the iknll and sacrum, the seven posterior bear moveable ribs, 



111 



