Dr. A. Giinther on Reptiles from Bahi 



415 



very dangerous. Another similar snake lives on the Uricana pam, 

 from which its name of Surucucti uricana is derived. 



38. Laehesis mutus, L. Called Surucucu ; it lives in holes to- 

 gether with CceJogenys paca, and is very dangerous to the dogs used 

 in shooting the latter. 



39. Crotalus horridus, L. 



I add the description of the new species of Snakes, and of a new 

 Lizard, sent by Dr. Wucherer to the British Museum. 



Elapomorphus Wuchereri. 



Six upper labial shields, the second and third of which enter the 

 orbit ; two posterior oculars. Scales in fifteen rows ; ventral shields 

 181-208. Reddish-olive (in spirits) ; head black, with a yellow 

 band across the occipitals ; sometimes with three dark longitudinal 

 lines. Very old specimens uniformly coloured, the head being dirty 

 light brown. 



Hab. Bahia. 



Description. — This species has a very slender body, whilst the 

 tail is comparatively short. The head is depressed and obtuse, like 

 that of an Flaps. Rostral shield of moderate extent, not reaching to 

 the upper surface of the head. Anterior frontals one-third only of 

 the size of the posterior ones ; vertical subhexagonal, somewhat 

 longer than broad ; occipitals large. Nasal shield oblong, occupying 

 the place of a loreal ; one anterior, two posterior oculars. Two tem- 

 poral shields, one behind the other, the anterior in contact with the 



oculars. Six upper labial shields, the second produced upwards and 

 backwards so as to enter the orbit, the third immediately below the 

 eye. Lower labials seven or eight, the fourth and fifth being very 

 large. Two pairs of chin-shields ; two or three pairs of scale-like 

 shields between the chin-shields and the ventral plates. Scales 

 smooth, poUshed, rhombic, in fifteen rows. Ventral shields 206-208; 

 anal bifid ; subcaudals 33-47- Dr. Wucherer has found in a very 

 large specimen 181 ventral and 32 subcaudal shields. 



