FAMILY V. CYSTIGNATHID/E.* 



LITHODYTES LATRANS, COPE 



Identification Characteristics 

 Colour : Brownish olive or grey, with closely set dark brown 

 spots. Spots rounded, those on the head and anterior and middle 

 back may be elongated transversely. Colour surrounding the 

 elongated spots of the top of the head bright salmon-pink. The 

 bright colour of the middle back extends at right and left on the 

 sides, and is conspicuous also on the elbows, so that there is pro- 

 duced the effect of a pink band across the middle of the back. 

 Many small irregular dark spots on the front and sides of the 

 head; rounded dark spots on the posterior back. One especially 

 conspicuous dark spot under the eye widens downward to the line 

 of the jaw. Arms and legs irregularly barred and spotted with 

 dark. Iris bronze. Underparts greyish white, somewhat spotted 

 along the jaw and on the breast. (See Colour Plate II.) 



Measurements: Size relatively large, i. e. length may reach 

 3^ inches. Head relatively long, its length contained in total 

 length two and a half times. Head wider than long. Leg not 

 long; its length to the heel equals the length of the body forward 

 to the ear or the eye. (Fig. i88.) Tibia as long as femur. 

 Forearm unusually long. (Fig. 187.) Length of fingers in order 

 from the shortest, 2-1-4-3. Length of toes from the shortest, 



1-2-5-3-4- 



Structure: Smooth everywhere; skin of extremely fine tex- 

 ture. Jaw acuminate rounded ; head broad, with large eyes widely 

 separated. (Fig. 188.) Truncate muzzle extends somewhat be- 

 yond the line of the jaw. Canthus rostralis prominent; long 

 converging lines extend forward to the end of the muzzle. (Fig. 

 186.) Nostrils terminal or nearly so. Vomerine teeth oblique, 

 between the large internal nostrils. Pupil horizontal. Ear 

 distinct; vertically oval; large (its horizontal diameter slightly 

 more than half the diameter of the eye) ; and very near the line 

 of the jaw. Slight fold of skin from eye over ear to shoulder. 



1 Refer to pp. 7, g and 45. 



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