Plate XVII., p. 215, fig. A.--Part of the nest of _N. suffusa_ (Camb.) taken at Montpellier; A 1, _N. suffusa_ (Camb.) from life, of the natural size; A 2, the same in spirits, seen sideways and magnified, the legs not represented; A 3, another view of the same; A 4, the eyes, magnified; A 5, length of spider (see above, fig. B 5, plate XV.); A 6, measurements of legs and palpus; B, _N. meridionalis_ (Costa and Sim.), male, from a specimen in spirits, of the natural size, legs not represented; B 1, the same magnified; B 2, the eyes, magnified; B 3, radial and digital joints of the left palpus with bulb, magnified; B 4, another view of the same, magnified; B 5, back view of the same, magnified, but less highly; B 6, length of spider (see above, fig. B 5, plate XV.); C, _N. meridionalis_ (Costa and Sim.) female, from a specimen in spirit of wine, of the natural size, legs not represented; C 1, eyes of the same, magnified; C 2, length of spider. These two specimens (male and female) were collected in Corsica, and named by M. E. Simon, who kindly presented them to me; they are now in the possession of the Rev. O. Pickard-Cambridge. Plate XVIII., p. 225, fig. A.--Part of nest of _N. congener_ (Camb.) taken at Hyères; A 1, lower door of this nest viewed from above, of the natural size; A 2, side view of the same; A 3, _N. congener_ (Camb.) taken from life, of the natural size; A 4, side view of the same, enlarged to twice the natural size, the legs not represented; A 5, cephalothorax and falces from specimen in spirits, magnified;[108] A 6, the eyes, magnified; A 7, femur, patella (or genual joint) and tibia of leg of third pair, showing the three spines on the outer side of the patella, magnified. B, lower door from a smaller and younger nest, viewed from above, of the natural size; B 1, the same viewed sideways. [Footnote 108: While these pages were passing through the press (Hyères, Oct. '74), I have had an opportunity of examining 17 additional specimens of _N. congener_. I learn from this that the pattern represented on the caput in fig. A 5, does not accord with that in the majority of adult specimens, being usually less defined and composed of three converging bands. Mr. Pickard-Cambridge's description (p. 293 below) is, however, quite correct. I may mention that three spines were present on the patella (genual joint) of legs III in 16 specimens, the 17th specimen having but a single spine.]