HORATTA BOA. 559 



Another dog, of much smaller size, bitten by 

 the same snake, expired in one hour and ten mi- 

 nutes ; having for the last ten minutes been af- 

 fected with strong convulsions. In this case 

 about a quarter of an hour elapsed before the 

 animal shewed symptoms of being infected ; but 

 towards the end of the hour both the hind legs 

 were become paralytic. 



It appears, therefore, that this species of Boa is 

 of a highly poisonous nature. 



HORATTA BOA. 



Boa Horatta. B. atrqfusca, fascia utrinque laterali unduhla 



maculisque spinalibusjlavis. 

 Dark-brown Boa, with a waving yellow band on each side, 



and a row of dorsal spots. 

 Horatta Pam. Ihiss. Ind. Serp. p. 2, t. 2. 

 Abdominal scuta 150, subcaudal 25. 



This is a small species, measuring only about 

 fifteen inches in length. Its colour is a dark 

 brown, with a row of spots on the ridge of the 

 back, from the neck to the end of the tail, vary- 

 ing a httle in size and figure, but all of a dull yel- 

 lowish colour edged with black : along each side 

 runs a conspicuous waving fdlet of the same co- 

 lour, and on the head are four remarkable dark 

 spots, the lai gest of which bears some resemblance 

 to the shape of a horse-shoe : the scuta are yellowish- 

 white, and all the abdominal ones are marked with 

 three or four dusky spots : the head is rather small 



