207 
abachnida. 
not at all improbable that, like the native plants and the snails which 
we know are fast disappearing, some having gone entirely, the 
spiders, for some cause or other, are also yielding up tlieir native 
land to foreign invaders. 
There are but two species of Scorpion, and they are not abun- 
dant ; they are both introductions, and to Mr. Cambridge I am in- 
debted for their identification as well as that of a small pseudo- 
scorpion of which I found only one specimen, and that in the neig - 
bourhood of some very old dry-looking law books m the Supreme 
Court House. Whence he came remains yet to be ascertained j what 
he was doing there will probably never be known. 
Order Scorpionidea. 
Fam. Scorpionides. 
Lyckas, C. Koch. 
L americanus, C. Koch.— A small brown Scorpion, with rather 
a long tail, inhabiting the hot, barren, rocky outskirts of the Island ; 
found in damp situations under stones and old timber, and very 
rarely in the town houses. It is not sufficiently abundant to cause 
inconvenience, and never reaches the high land ; most probably it 
has been introduced through the medium of commerce. 
Li. maculatus, C. Koch.— A species which associates with the 
other, and is scarcely distinguishable from it, though smaller in size. 
Fam. Pseudo-scorpionida. 
Chelifer, Geofir. 
C sp S’— A minute brown creature resembling a scorpion without 
a tail! found inhabiting some dry rubbislr behind the Court House, 
in the Castle gardens on the low land. It is very rare. 
Order Araneidea. 
Fam. Filistatidce. 
Tilistata, Latr. 
»F condita, Cambr.-This Spider, which is peculiar to St. Helena, 
has been described and figured by Mr. Cambndge in “ Proceed. Zool. 
. Mr. Cambridge ha. ltindly promised to ask Dr. L. Keek to ea-ine this .p«~ 
