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ZOOLOGY. 



{Pelias berus, Fig. 47), as it is dangerous to man. 

 Head broad ; tail mucli smaller than the hinder end 





of the body. Colour greenish grey or brownish. A 

 black zigzag band runs along the dorsal side of the 

 body. Length about twenty inches. The two hook- 

 shaped poison-fangs are found in the front of the 

 upper jaw; opening the mouth widely causes them 

 to be erected. They are traversed by poison-canals 

 through which the poison flows immediately into the 



