344 G. A. BOULENGER 



40. ILieptoTbracliiiiiii pax*vu.in , sp. n. 



{PL XI, fig. 2). 



District of the Karin Bia-po, Yado. Five specimens. 



Closely allied to L. monticola, with which ^ it agrees in the 

 vomerine dentition, the angular and prominent snout, the swollen 

 ends of the digits, the rudimentary web between the toes, the 

 symetrical muciferous ridges on the head and back (the persi- 

 stent "lateral lines" so much developed in Pelobatoid larvae), and 

 in coloration. But it differs in the much smaller size ; the shorter 

 snout, the distance between the tip of the snout and the orbit 

 being considerably less than the diameter of the orbit ; the tym- 

 panum, about three fifths to two thirds the diameter of the eye, 

 equalling or even exceeding its distance from the orbit ; the 

 shorter hind limbs, the tibio-tarsal articulation reaching the 

 tympanum in the females , the posterior border of the eye in 

 the male ; and the shorter toes. The length of the tibia is conside- 

 rably less than half the distance between end of snout and vent. 



The following table of measurements, taken from adult spe- 

 cimens of L. monticola and L. parvum from the same district , 

 well shows the differences on which the new species is founded : 



From snoiit to vent millim. 



Length of bead » 



Width of head 



From end of snout to orbit . . » 



Diameter of orbit ...... » 



Interorbital space », 



Diameter of tympanum .... » 

 Distance between orbit and tym- 

 panum » 



Fore limb » 



Hind liinb ... .... » ' 



Tibia . » 



Foot » 



