EMYSCUMBERLANDENSIS. 57 



The anterior extremities are short, covered with a warty skin, and furnished 

 with large scales placed transversely both above and below; a remarkable range 

 of large scales extends along the ulnar border of the fore-arm to the toes, which 

 are five in number, webbed, and each furnished with a long, delicate, nearly 

 straight nail. The posterior extremities are large, well developed and flattened 

 at the tarsus, covered like the anterior, and sustain five fully palmated toes, 

 four only of which are furnished with nails. The tail is of moderate size, thick 

 at its root, but soon becomes conical and pointed. 



Colour. The head above is dusky; the jaws are horn-colour, with dusky bars; 

 from the mouth to the neck run some small longitudinal yellow lines, the central 

 one most distinct; a long lemon-coloured spot begins behind the superior part of 

 the orbit, and runs horizontally for half an inch along the neck, increasing in size, 

 and finally sends off one branch which continues in the same direction, and another 

 that descends along the side of the neck; a second line, of similar colour, and of 

 the same size at its commencement, though it does not increase like the last, 

 descends from the posterior and inferior part of the orbit of the eye to the poste- 

 rior extremity of the lower jaw, where it terminates in a blotch, with a line nearly 

 of the same size that begins midway between the angle of the mouth and chin; 

 finally another line of equal size begins at the chin, and soon subdivides in two 

 others, between which is placed an intermediate line; all these are continued on 

 the throat, which is dusky, and has some indistinct smaller lines of yellow. 



The plates of the shell are brown, more or less dark, each being beautifully 

 marked with a waving blotch, or with radiating lines of yellow or fawn colour. 



The sternum is yellow in the centre, each plate being marked with a dusky 

 oblong blotch, placed nearest the outer margin. 



The anterior extremities are dusky above, with a brown longitudinal lemon- 

 coloured line reaching even to the nails; in front and behind are similar lines, but 

 smaller; below the limb is dusky, with a line or two and some blotches of yellow, 

 Vol. IV.— 8 



