THE SPIDER. 



651 



Acrosotna arcuata. 



Hypoplatia. celer. 



Erijnu keterogatter. 



Gasteracantka cancriformis, 

 Acrosotna. (Another species.) 



Cteniza nidulans. 



In these strange creatures, the mandibles are furnished with a curved claw, perforated at 

 the extremity, something like the poison-fang of a venomous snake, and used for a similar 

 purpose. A gland furnishes a secretion which is forced through these organs, and is 



