130 TRAP-DOOR SPIDERS. 



lished records of tlie nests of spiders belonging to the 

 sub-order Territelarice, with a view, if possible, to trace 

 out the geographical range of the several types of 

 structure. 1 have, however, met with but a small 

 amount of success, and even among the limited number 

 of tolerably complete accounts of nests which I have 

 been able to discover, several made no mention of the 

 spider to which the nest belongs. 



Prof. Ausserer* has enumerated 215 species of 

 Territelari(B as having been found in the world at 

 large, but of this large number ten only, as far as I 

 have been able to learn, have been described in con- 

 nexion with their nests, and eight of these belong to 

 the Mediterranean region. f To these we may now 

 add two more, namely, Nemesia meridionalis, with its 

 branched double-door nest, and N. Eleanora the builder 

 of the unbranched double-door nest, thus making 

 twelve in all. 



Three of the twelve, however, Atypus piceus. A, 

 Blackwallii, and Nemesia celUcola,\ do not appear to 

 build true trap-doors, but only a simple silk tube 

 without any covering at the mouth. 



The following tabular view will show to which of 

 the four types of trap-door nest those of the remain- 

 ing nine spiders belong, and their geographical dis- 

 tribution : — 



* In his monograph of Territelarice quoted above. 



+ I use this term in its widest sense, making it even include Morocco. 

 A list of the species known to inhabit this region will be found in Ap- 

 pendix C. 



t See Appendix A, p. 141. 



