91 



RANA HORICONENSIS. 



Plate XVIII. 



Characters. Head large, snout rather pointed, upper lip light bronze, with dark 

 bars, above this an irregular, indistinct, clouded white band under the tympanum 

 to the shoulder; body very robust, dark olive, with irregular black spots, and a 

 cuticular fold on each side. Length, 3i inches. 



Description. The head is large, broad, with the snout rather pointed, the 

 whole dusky green above. The nostrils are lateral, and nearer the snout than the 

 orbits. The eyes are very large, prominent and beautiful, with the pupil black 

 and the iris golden, reticulated with black. The tympanum is large, bronzed, with 

 a lighter spot in its centre. The upper lip is light bronze colour, with dusky 

 bars; above this is an indistinct band of bluish-white, interspersed with black spots, 

 which extends from near the snout, under the orbit and tympanum, to the shoulder. 

 The lower jaw, chin and throat, are white. The body is very robust, dark olive, 

 interspersed with irregular black spots, with an elevated cuticular fold on each 

 side, of lighter colour, from the orbit to the posterior extremities; the abdomen is 

 silvery-white. 



The anterior extremities are stout, dusky above and white below; there are 

 four fingers, distinct, thick, dusky above and below. The posterior extremities 

 are greatly developed, dark oUve above, marked with transverse black bars. The 

 anterior part of the under surface of the thighs is smooth and silvery-white, the 

 posterior is granulated and flesh coloured; there are five toes, long, and very 

 fully palmated, dusky above and below. 



