116 



the straightness of the unexserted laniaries. The species is most 

 rare ; its flesh excellent ; its manners resemble those of Sus in general, 

 but with some marked difFerences. 



Genus Taxidea, Waterh. 



Taxidea Leucitrūs, mihi. Tibetan Badger.— Head laterally and 

 above whitish, divided by a blackish line through the eye. Body 

 above and laterally yellowish grey, paling towards the flanks. Below, 

 from chin to vent exclusive, black ; and limbs the šame. Tail un- 

 mixed yellowish white. Ears black basally, white apically. Snout 

 to vent 27 in. ; head 5^ in. ; tail 10 in. ; paima and nails ^ in. ; 

 planta and nails 4 in. ; ear, \vith tuft, 2 in. 



Hab. Plains of Tibet. 



July 27, 1847. 

 William Yarrell, Esq., Vice-President, in the Chair. 



The folio wing papers were read :■— 



1. Note of the Circulation of Crocodilus lucius. By 

 Edward Fry. 



In a recent dissection of a specimen of the Crocodilus lucius, 

 measuring about five feet four inches, I discovered an arrangement 

 of the arterial system -vv-hich is, as far as I am aware, anomalous, and 

 •which may perhaps be therefore -tt-orth recording. 



In all the drawings of the Saurian circulation -vvith which I have 

 met, the left ventricle is represented as giving ofF, in addition to the 

 right aortic arch, a common trunk, -vvhich divides into two arteries 

 for the supply of the fore-part of the body, -vvhich for a short course 

 are to be considered as arterise innominatse, when they give origin 

 to the subclavian arteries and pass upwards, one on either side, as 

 carotids, for the supply of the head and face. In the individual in 

 ąuestion, however, the arrangement -n'as this : beside the right 

 aortic arch, two trunks are given off from the bulbus of the left ven- 

 tricle ; of which, one passes immediately to the supply of the right 

 fore-limb, and the other proceeds up\vards, shortly gives off a con- 

 siderable branch as a left subclavian, and then continues its upvvard 

 course on the mesial line lying immediately on the under side of the 

 bodies of the vertebrae, in a channel between the longitudinal museles 

 of either side, and above the trachea, until it almost reaches the 

 posterior nares, where it subdivides, its branches passing over the 

 under side of the temporal museles, and going to feed the lower jaw, 

 as well as supplying the sides of the head. 



The parts which this singular artery supplies prove it to be the 



