REV. O. P. CAMBRIDGE ON NEW BRITISH SPIDERS. _ 399 
Family SALTICIDES. 
Genus SALTICUS. 
SALTICUS AFFINITATUS, n. Sp. 
Male adult, length 3 of an inch. 
This spider is closely allied to Salticus histrionicus (Koch), but is much smaller. 
The cephalothorax is much more abrupt in the hind slope; it is black, the upper part 
eovered with short shining white hairs, the sides with yellowish brown ones, and the 
margins are broadly white. 
Abdomen short, oval, and very convex compared with that of histrionicus; the upper 
part is black, with a curved band at the extremity forwards, and three short oblique ones 
on either side of the hinder half of a dull yellowish colour; all these, however, are nearly 
obseured (except when in spirit) by the sides being clothed with numerous short, white, 
shining hairs; the upper part is likewise so clothed, but more sparingly; the underside 
is yellow-brown, sparingly clothed with short white hairs, and with a paler yellow lon- 
gitudinal band on either side. 
Legs pale yellow, with some indistinct brownish bands and macule. 
Palpi of the same colour as the legs; radial joint but one-half the length of the cubital, 
and having a longish projection on the outer side, nearly straight but not so stout, and 
rather more pointed than in Salticus scenicus, but less so than in S. histrionicus. Palpal 
organs much like those of scenicus, and simple in structure; they have a large, promi- 
nent, semitransparent lobe running rather on one side, from the base to the end of the 
digital joint. This lobe is most prominent near the base. From the parts of the mouth 
numerous long bristly blackish and grey hairs issue, and project even beyond the extre- 
mity of the falces, which in this species are developed similarly to those of S. scenicus 
and S. histrionicus. Though very nearly allied to S. histrionicus, it may easily be dis- 
tinguished, not only by size, but by the lateral stripes being less oblique, and confined 
to the sides, and by the whole spider being more or less clothed with short shining white 
hairs, as well as by the form of the radial joints of the palpi, and by the structure of the 
palpal organs. An adult male was captured by myself among heath at Bloxworth in the 
summer of 1860. 
M. Eugéne Simon* supposes, though doubtfully, that the specimen here described 
may be the male of Callietherus zebraneus, Koch ; this sex, however, of that species has 
not yet been described, and the typical females, according to M. Koch's figures and 
deseription, differ from S. affinitatus not only in size but in markings; I have therefore 
thought it less likely to lead to confusion to describe the latter as a new species than to 
include it, somewhat at random, among the synonyms of C. zebraneus. 
SALTICUS ÆQUIPES, n. sp. (Pl. 54. no. 4.) 
Salticus equipes, Cambr. MS. : : 
Attus equalipes, Monographie des Attides d'Europe, par M. Eug. Simon, p. 145. 
. Male adult, length +; of an inch. ; 
Cephalothorax large; the caput slopes forwards, projects considerably, and is of a black 
* Monographie des esp. europ. de la Famille des Attides, par Eug. Simon, p. 186, note 1. Paris 1869. 
