EXPLANATION OF PLATES. 



coat, and showing the two seed leaves; C, a sprouting "canary-seed" 

 (the grain of Phalaris canarioisis) , part of the fibril of which has been 

 gnawed off; CI, the same, magnified, rad. the radicle which remains 

 tmdeveloped, and /6. the fibril or first rootlet; C 2, an unmutilated 

 sprouting " canary seed ;" D, a mass of earth taken out of the heart of 

 a nest of Atta barbara, in which a spherical cell, made of hardened 

 earth, was buried. It contained grass seeds, among which 1 found ants 

 at work, and seeds of the same grass still in their husks lay in the gallery 

 leading up to the entrance of this cell ; D 1, the same, further freed 

 from the earth, and having part of one side removed, so as to show the 

 interior and the small lower opening leading out from the bottom of 

 the cell. 



PART II.— TRAP-DOOR SPIDERS. 



Plate VII., p. 88, fig. A. — The nest of Cteniza fodiens, the lower part of 

 which is seen in section lying in the earth, the door is artificially repre- 

 sented as partly open; A 1, surface of the door viewed from above; 

 A 2, the spider ; A 3, the spider deprived of its legs, from a specimen 

 preserved in spirits [figs. A, A 1, A 2, and A 3, are of the natural size] ; 

 A 4, the spider viewed sideways, with the legs removed ; A 5, the eyes, 

 viewed from above and in front ; A 6, the cephalothorax and falces ; 

 A 7, the left hand falx, viewed from the inner side ; A 8, the fang of 

 the same ; A 1), the tarsal joint of the foremost right leg ; A 10, one of 

 the two larger and the smallest claw of the same [figs. A 4, 5, 6, 7, 8, 

 9, and 10, all magnified]. Fig. B, the door of a nest of the same kind, 

 concealed by lichens, below which, on the left hand, the doors of two 

 miuute nests of Nemesia meridionalis are seen ; B 1, the same, with the 

 doors open ; C, the door and mouth of tube of a nest similar to that at 

 A ; C 1, the upper surface of this door, which is slightly convex. 



Plate VIII., p. 94, fig. A. — The nest of Nemesia ccvmentaria ; A 1, the 

 door of the same, partially open; A 2, the spider; A 3, the same 

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

 2, and 3, of the natural size]; figs. A 4, 5, 6, 7, 8, 9, and 10 as in Plate 

 VII., and magnified ; B, a moss-covered lump of earth, in which the door 

 of a nest of the same type as that at A lies concealed ; B 1, the same, 

 with the door open ; C, the door and mouth of another similar nest, 

 showing the claw marks on its imder surface ; D, the closed door of a 

 third nest of the same kind ; D 1, the same, opened. 



Plate IX., p. 98, fig. A. — Thenestof Nemesia meridional is; A 1, the open sur- 

 face-door and mouth of the tube of the same ; A 2, the inner and upper 

 surface of the lower door ; 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] ; A 5, the spider viewed sideways, with the legs 



