In every one of these I found the tube cylindrical and unbranched throughout, and destitute of any trace of a lower door. This deficiency alone distinguishes the present type from that to which the nest of _Nemesia Eleanora_ belongs; the latter being of the _double-door_ and the former of the _single-door, unbranched wafer type_. But perhaps it may be asked whether it is safe to assume that because twelve examples of this nest were found to correspond in structure, and were tenanted by the same occupant, that therefore all the Bordeaux nests in which this particular spider might be found would present similar peculiarities. I greatly hope that other naturalists will put this question to the test of actual investigation on the spot, but I do not hesitate to assert my conviction that this will prove to be the case. The result of my experience among the nests of the other _Nemesias_, scores of which I have carefully examined in many widely separated localities, shows that a given spider is invariably associated with a fixed type of nest. Thus, Cannes is from fifty to sixty miles distant from San Remo, but the nests of _N. cæmentaria_, _N. Manderstjernæ_, and _N. Eleanora_ show precisely the same characteristics in either place. Moreover, the twelve nests referred to were not all taken from one restricted locality at Bordeaux, but were found presenting the same characteristics and occupied by the same spider in three distinct habitats, distant some miles from one another. In two nests several young spiders were found with the mother, and, in one case where the family consisted of twenty-three young ones, I observed that they were not all equally small, and some had nearly attained one-third of their full size. This agreed with the fact that no very small nests were observed, and it seems probable that the young are not turned out of their nursery quite so early as some of their relations are at Mentone. This, however, varies perhaps in accordance with changes of climate and local conditions. We failed to detect any other type of nest at Bordeaux than the one described above: and even the cork nests, which we had shortly before seen in such abundance at Montpellier, were apparently absent. Bordeaux is by far the north-westernmost point in Europe[139] at which any spider constructing a true trap-door nest has as yet been discovered; and the fact that they exist in a climate so different from that of the Riviera and of the whole Mediterranean region, leads me to hope that their range may in reality be much more widely extended than has hitherto been supposed to be the case. [Footnote 139: Cork nests have however been mentioned as occurring in the neighbourhood of Lyons, which lies in nearly the same parallel of latitude with Bordeaux.]