208 DR. J. ANDERSON ON INDIAN REPTILES. [Feb. 21, 



speckled with brown. The vomerine teeth are in convergent series. 

 The surface of the head between the orbits concave ; roughish surface 

 above each canthus rostralis and between the orbits, and extending 

 along the occiput, enclosing a smooth triangular space ; no transverse 

 ridges. Length 2" 9'"; thigh 1" 5'"; calf 1" 5'"; heel 9'", to 

 fourth toe 1" 1'". 



This specimen appears to be intermediate between true P. quadri- 

 lineatus and P. maculatus ; but the black lines on its back and other 

 characters affine it to the former. 



Gowhatty, Assam, considerably below 2000 feet. 



POLYPEDATES SMARAGDINUS, Blyth, Joum. As. SoC Beilg. 



vol. xxi. p. 355; Jerdon, Proc. As. Soc. 1870, p. 83. 



Blyth merely says, "A Tree-frog from the Naga hills, Assam 

 (P. smaragdinus, nobis). Length of the body 3| inches, hind limb 

 5| inches. Wholly green above, changing in spirit to livid blue ; 

 underparts white." Dr. Jerdon is not more explicit about the 

 form which he supposes to be Blyth' s P. smaragdinus; for he 

 merely says that it is "A very large green-backed Frog." Dr. 

 Jerdon has presented his specimens to this museum ; and I take 

 this opportunity to describe them. 



Body moderately long and slender ; legs very long and slender. 

 Head rather broad, upper surface slightly concave on the mesial line ; 

 distinct canthus rostralis ; loreal region concave ; snout of moderate 

 length, rounded in front ; tympanum distinct, a little more than 

 half the diameter of the eye. Vomerine prominences placed nearly 

 transversely across the palate, from the inner angle of the choanse, 

 from which they are separated by a short interval, convergent behind, 

 but not in contact. A single line of from nine to twelve short nodular 

 teeth. Skin quite smooth throughout; skin adherent to the sur- 

 face of the head ; indications of a curved osseous crest. No enlarged 

 tubercles below the anus ; no appendage to the heel. The body 

 is one-seventh the distance between the arms and the heel, shorter 

 than the length between the two points. Fingers with a very rudi- 

 mentary web ; disks large, considerably larger than those of the 

 toes, which are broadly webbed, the membrane reaching to the 

 disk. 



The upper surface is pale livid blue (spirit specimen) ; under sur- 

 face of chin, throat, and chest brownish, the rest yellowish. A 

 dark brown band through the loreal region and along the sides of 

 the groin. Upper jaw with a white line from the snout, below the 

 eye and tympanum, passing behind the axilla to the ventral sur- 

 face. Sides marbled brown and yellow ; legs with broad brown 

 bars ; back of thigh marbled with yellow and brown ; arms slightly 

 marked with brown bars and spots. Two youngish specimens have 

 a single longitudinal series of black spots over the vertebral line, 

 with faint indications of others. Length of body 3" 2'" ; hind 

 limb to heel 3" 8'" ; heel to extremity of largest toe 2" G'". 



I am not at all satisfied that this is more than a variety of P. ma- 

 culatus. 





