Of S P IDERS , 57
Microfcopical Obfervations O N T H E
Carter Spider, and Jumping Spider ;
By the late Dr. H ooke, F F. J".
H E carter, fhepherd Spider, or long-legg’d Spider, has, for
two particularities, very few fimilar creatures that I have met
with ; the firft which is dilcoverable only by the microlcope,
and is in the firft, and fécond figures o f Plate XXXVII. plainly de-
Icrib’d, is the curious contrivance o f his eyes, o f which (differing
from moft other Spiders) he has only two, and thole plac’d upon
the top o f a lmall pillar or hillock, rifing out o f the middle o f the
top o f its back, or rather the crown o f its head $ for they were fix’d
on the very top o f this pillar ( which is about the heighth o f one o f
the tranfverie diameters o f the eye, and look’d on in another pofture,
appear’d much o f the fhape B C D ) the two eyes, B B, were placed
back to back, with the tranfparent parts, or the pupils, looking towards
either fide, but fomewhat more forward than backwards. C was the
column or neck on which they ftood, and D the crown o f the head
out o f which the neck fprung.
T h e s e eyes, to appearance, feem’d to be o f the very lame ftruc.
ture with that o f larger binocular creatures, leeming to have a very
finooth and very protuberant cornea, and in the midft o f it to have
a-very black puple, incompafled about with a kind o f grey iris, as ap-
I peats