— 1:4— 



must have been a branch from the main tube with a trap door, and the 

 soil being so full of rocks I failed to find it. 



The second individual I collected on the morning of Apr. 6, "86, 

 while digging into a side hill with a southern exposure for white ants 

 {Termes Jlavipes ,). Discovering a tube I traced it until I found at one 

 side a trap door opening into a short branch. In this I found a fine 

 specimen of trap-door spider. The nest I concluded belonged to the 

 type called by Mr Moggridge, "Double door branched nest"', but dif- 

 fers from that in having a cork door instead of a wafer door. I did not 

 see the door at the end of the main tube, if there was one, as the soil 

 was very loose and rocky, and every trace would have been destroyed 

 fjefore finding the main tube. 



The third individual was collected in the afternoon of the same 

 day, by one of the students, D. E. Woodley. The tube ran under ;•. 

 stone, a trap-door was at the upper end, but the branch and second 

 door was not seen: Mr Woodley said, however, that it might have es- 

 caped his notice as the tube was not traced out very clearly. 



The fourth individual I collected Apr. 6. On turning over a stone 

 I saw what is represented in fig. i6, Plate V except that the trap door was 

 closed, and the spider was in the tube a short distance below it. The 

 space above the trap door is a portion of an ants nest, b is the entrance 

 from the surface of the earth; a, c7, is a broad hall-way leading oflf into 

 galleries on the side. The spider had come down at b, undoubtedly 

 during the night while the ants were quiet, unconscious of the purpose 

 of their terrible enemy, dug the hole in the center of this hall way, and 

 covered it with a traj>-do(jr before the ants were stirring at the break of 

 day. The soil was in a good condition for tracing out the tube, which 

 I did very carefully and found neither branch nor second door, so that 

 this nest was of the type single cork door, tinbranched 7iest. 



The fifth I collected on the same day and not more than lo feet 

 distant. Turning over a stone 1 saw a tube which ran down one of the 

 perpendicular sides of the hole, in which the rock fitted, then along the 

 bottom to rvear the center of where the stone lay. Here it disappeared 

 taking a perpendicular direction again. I ran a straw down this tube 

 and felt the movements of the spider. The spider would not seize the 

 straw, as they sometimes will, and soon I could no longer feel the move- 

 ments. I then dug carefully around the tube, and at the depth of about 

 lo inches struck the spider, splitting open its caput. This happened 

 because the spider was in the branch: when I first ran the straw into the 

 tube he was in the main tube, and probably bein frightened ran into the 

 branch and caught hold of the door. This confirms what Mr. Mogg- 



