ON SOME RARE ARACHNIDS 65 



and is there accompanied by Typhochrestns digitatus (Camb.). 

 At first I associated the females of this spider (then known 

 as T. dofsuosi/s, Camb.) with the males of Cnephalocotes 

 pusillus (Menge), and Dr. Carpenter referred to and figured 

 them under that name. Later I found at Southport the 

 real female of Cnephalocotes ptisillus (Menge), and here 

 describe and figure it. It is certainly new to Britain, and 

 probably to science, as I believe M. Simon has, like Dr. 

 Carpenter, described the female of T. digitatus (Camb.) as 

 that of the present species. I am led to this belief by reading 

 his description of the vulva, and comparing it with that of 

 both species. I now figure the vulva of each species. 



The males of Typliochrestus digitatus have occurred in a 

 good many localities. I have seen them from Southport, 

 Wallasey, Glamorgan, North Wales, and Yorkshire; they are 

 in these localities always accompanied by this female, which I 

 have also found in Dorset (Portland), and near Hexham, in 

 Northumberland. As before stated C. pusillus {}A&xig€) has 

 only occurred in Britain on the sandhills round Southport, where 

 I have myself obtained both sexes. The two females are very 

 easily separated both by general and sexual characters. Both 

 are of about the same size, but C. pusillus is of squat form, 

 the abdominal integument being coriaceous and forming rather 

 indefinite dorsal and ventral scuta. Its sternum is very broad, 

 the prolongation between the posterior coxae being much 

 broader than either of these joints. The legs are stout and 

 thick, and all the tarsi, but especially the first pair, are slightly 

 fusiform. The anterior row of eyes is, when viewed from the 

 front, slightly but distinctly procurved, that is to say curved 

 with the convexity behind. The posterior row, viewed from 

 above, is curved in the same direction, but more strongly so. 



In T. digitatus (Camb.) all these points are reversed. The 

 spider is slenderer, with no coriaceous integument, and thin 

 legs, the tarsi of which are not fusiform. The sternal pro- 

 longation is not wider than either of the posterior coxae which 

 it separates. The anterior row of eyes viewed from the front 



