EXPLANA TION OF PL A TES. xi 



removed ; A 6, the eyes, viewed from above and in front ; A 7, the 

 ce])halothorax and falces; A 8, the left hand falx viewed from the 

 inner side; A 9, the fang of the same; A 10, the tarsal joint of the 

 foremost right leg; All, one of the two larger and the smallest claw of 

 the same [figs. A 5, 6, 7, 8, 9, 10, and 11, magnified] ; B, a mass of 

 earth containing the minute nest of a young spider (A'', mcridionalis) ; 

 B I, the lower door of this nest; B 2, the spider [figs. B, B 1, and 2, 

 of the natural size]. 



Plate X., p. 100, fig. A. — Part of a nest of N. mcridionalis ; B, the new and 

 larger upper door of a nest of this spider, with the former and smaller 

 upper door partially united to it ; C, another example of enlargement in 

 the upper door of the same spider, showing traces of two previous doors 

 DOW incorporated. [All the figures are of the natural size.] 



Plate XI,, p. 105, fig. A. — The upper part of a nest of N. meridionalis con- 

 cealed in a plant of Ceterach fern ; A 1 and A 2, a minute cork-door, 

 closed and open, which I saw constructed by a very young spider [either 

 Cteniza fodiens, or, more probably, Nemesia ccementaria] at the mouth of a 

 hole in the mass of earth containing the nest of N. meridionalis figured at 

 A. This hole may be seen on the right of the fern. B, the door of a 

 small nest of N. meridionalis, as seen from above, in its natural position 

 in a steeply sloping bank ; B I, part of the same nest placed in an upright 

 position, and showing the surface door open and the lower door closing 

 the branch j B 2, the same with the lower door pushed across so as to 

 close the main tube ; B 3, 4, and 5, different views of this second door. 

 [All the figures in this plate are of the natural size. ] 



Plate XII., p. 106, fig. A, — The nest of N. Eleanora with the surface 

 door artificially represented as being open ; A 1, the outer side of the 

 surface door of the same nest into which mosses of two kinds are woven ; 

 A 2, the second door of the same nest ; A 3, the spider ; A 4, the same 

 deprived of its legs, from a specimen preserved in spirits [figs. A, A 1, 

 2, 3, and 4 are of the natural size] ; fig. A 5, the spider viewed sideways, 

 with the legs removed ; A 6, the eyes viewed from above and in front ; 

 A 7> the cephalothorax and falces ; A 8, the left-hand falx viewed from 

 the inner side ; A 9, the fang of the same ; A 10, the tarsal joint of the 

 foremost right leg ; A 1 1 , one of the two larger and tlie smallest claw 

 of the same [figs. A 5, 6, 7, 8, 9, 10, and 11, magnified]; fig. B and 

 B 1 , the upper part of the tube and door of a nest of N. Eleanora 

 which partially projected beyond the surface of the earth and was clothed 

 with living moss. [Figs. B and B 1 are of the natural size.] 



