74 PROCEEDINGS OF THE ACADEMY OF [Jan., 



side of the palpal tarsus swelled up, and the palpus was not withdrawn 

 until this sac had collapsed; when a palpal organ was withdrawn 

 it was each time drawn through the chelicera before it was inserted 

 again. The following figures give the details of the copulation, r and I 

 being used for right and left palpus respectively, and the numbers 

 giving the time duration: r, 10.39f-10.41 ; 1, 10.41-10.41i ; 1, 

 10.411-10.42 ; r, 10.42-10.42^; I 10.4.3-10.43i; 1, 10.43^-10.44; 

 r, 10.44i-10.44f ; 1, 10.45-10.45^ ; r, 10.45^-10.46 ; 1, 10.46^ 

 10.47; r, 10.47i-10.47i; r, 10.47^-10.48^; r, 10.48^-10.49; 1, 10.49^- 

 10.49f ; r, 10.50- 10.50^ ; 1, 10.50^-10.51; r, 10.51|-10.51f ; 

 1, 10.52-10.52i; r, 10.52i-10.53; r, 10.53^10.54; 1. 10.54^10.54f ; 

 1, 10.55i-10.55i; 1, 10.55f-10.56; r, 10.564-10.56f ; 1, 10.57-10.57i; 

 r, 10.57^10.571; 1, 10.57f-10.58|; r, 10.58-10.58t; 1, 10.59-10.59i; 

 r, 10.59* (2 seconds); r, 10.59f-11.00; 1. ll.OOi-ll.OOf ; r, 11.00|- 

 ll.Oli; i, ll.Oli-ll.Olf ; r, 11.02-11.02^; 1, ll.02i-ll.03; r, 11.03|- 

 11.03f ; 1, 11.03f-11.04; r, 11.04^0-11-041; 1, 11.04|-11.05; r, 11.05tV- 

 11.05^; 1, 1 1.051-11.06; r, 1 1. 061-1 1.06|; 1. 11.06|-11.07; r, 11.07yL- 

 ll.OTi; h 11.07f-11.07x\; r, 11.08-11.08^; 1, 11.08^-11.081; r, 11.09- 

 11.09i; I, 11.09i-11.09y%; r, 11.10-11.10^; 1, ll.lOf-ll.U ; r, 11.11| 

 ll.llf;l, ll.lU-11.12;r, 11.12^0-11-12^; 1, 11.12i-11.12/o ; r, 11.13- 

 11.13i;l, 11.13i-11.13T\;r, 11. 14-11. 14^; r. 11. 141-11. 14|; 1, ILM^V 

 11.15I-; r, 11. 15^-11. 15f; 1, 11. 16-11.161; r. 11. 16^-11. 16^; r, 11.16f- 

 11.16f ; 1, 11.16i-11.17TV; r, 11. 17^-11. 17f; 1. 11.17|-11.18|; r,11.18i- 

 11.18i;r, 11.18^11.181; 1, 11. 19-11. 19i; r, 11.19^-11.101; r, 11.20tV- 

 11.20i:l, 1 1. 201-1 1.20f;r, 11.20^-11.21 ^ ; 1, 11.21i-11.21f ; r, 11.21|- 

 11.22tL;1. ll.22i-11.22f;r, 11.23-11.233^; l, lL23i-11.23f ; r, 11.23|- 

 11.24^;; 1, 11.241-11.241; r, 11. 25^-1 i.25i; 1, 11.25/o-l 1-261; r, 

 11.26f-11.26f;l, 11.261-11.271 ;r, 11.27i (10 seconds) ;r. 11.271-11.28; 

 1, 11.28i-11.28f ; r, 1 1.29-11.291; 1, 11.29^-11.291; r, 1 1.30-1 1.30^; r, 

 11.30i-11.30i;1.11.30|-11.30i;r,11.31f-11.31f; he then revolved upon 

 her;l, 11.32^-11.321; r, 11.33f-11.341-;r, ll.35f-ll.36; 1, 11.37-11.37|; 

 r, 11.38i-11.38|. Then he moved off her, when she jumped at 

 killed and ate him. On August 25 c? No. 275 was introduced, but 

 she caught and ate him too. 



(2) 9 No. 271 completed her final moult on July 20, and on August 

 22 S^ No. 233 was dropped upon the floor at 7.28 P.^I., while she was 

 upon the wall. He saw her at a distance of 75 mm., but she was 

 placed so that she could not see him, so at 7.35 I pushed her to tlie 

 floor. He courted and slowly approached her; she made an aggressive 

 movement; he dodged her but continued courting. She approached 

 and touched him, whereupon he immediately got into copulatory 



