FROM THE MONTEBELLO ISLANDS. 15 
Pat. &  Metat. 
Coxe. Tr. & fem. tib. & tars. 
LCOS, 7.) eens Il 1 7 64 8 = 23 
2. 1 7 6 Bo) cee 
35 3 41 3 AOE eee) IDE 
4 3 7 5 7 = 198 
Palipw see Aaerie ees 4 2 it 1 a 
The obvious difference between this species and 4. protensa 
and A. syrmatica, which latter are very much alike, is the 
shortened tail, the absence of the dark longitudinal markings on 
the cephalothorax and of the longitudinal markings on the 
posterior end of the upper side of the abdomen, almost every 
other point being the same or very slightly modified in the three 
species. ; 
In the somewhat allied genus, Arachnura Vins., several species 
have been constituted on the differences of the knobs at the end 
of their tails and of their shoulder-humps. Oftentimes these 
differences are seen in spiders of the same group of webs, and the 
spiders are possibly all derived from the same batch of eggs. [am 
not satisfied that this does not occur in the above species, the 
two first named being both described from the same locality, 
Port Mackay, in Queensland. The differences between them, if 
any, are very trifling. 
Group MancorEs. 
Genus LAarinta Simon. 
LARINIA MONTAGU, sp.n. (PI. I. fig. 4.) 
2 females, P.D.M. 1 female, T. H. 
Cephalothorax pale yellow, with a slightly darker median 
longitudinal streak and thinly spread white hairs. Mandibles 
the same, with pale yellow-brown fangs. Maxille and upper 
half of lip pale yellow, but base of latter light brown. Sternum 
pale yellow in median area, with light yellow-brown along the 
sides and at the lower end. Legs and palpi similar pale yellow, 
with fine white hairs, light brown spines on brown roots, and 
brown bristles on tarsus and metatarsus. On femur 1 the brown 
spots are much more numerous than elsewhere. 
The abdomen above is pale vellow with white hairs and white 
upstanding bristles, but mottled with darker brown in patches, 
giving the whole a uniform dark appearance. On the under side 
it is a network of paler and darker yellow. The spinnerets are 
brighter yellow, and the epigyne brown with yellow in the hollows 
and an oblong grey area behind it. 
The cephalothorax is moderately convex, twice as long as broad 
and one-half of its greatest breadth across the eye-area. The 
sides of the cephalic part are straight, those of the thoracic 
