And if in _crustaceous_ Sea-animals, then it
seems very probable also, that these knobs are the eyes in _crustaceous_
Insects, which are also of the same kind, onely in a higher and more active
Element; this the conformity or congruity of many other parts common to
either of them, will strongly argue, their _crustaceous_ armour, their
number of leggs, which are six, beside the two great claws, which answer to
the wings in Insects; and in all kind of Spiders, as also in many other
Insects that want wings, we shall find the compleat number of them, and not
onely the number, but the very shape, figure, joints, and claws of Lobsters
and Crabs, as is evident in Scorpions and Spiders, as is visible in the
second _Figure_ of the 31. _Scheme_, and in the little Mite-worm, which I
call a Land-crab, describ'd in the second Figure of the 33. _Scheme_, but
in their manner of generation being oviparous, &c. And it were very worthy
observation, whether there be not some kinds of transformation and
metamorphosis in the several states of _crustaceous_ water-animals, as
there is in several sorts of Insects; for if such could be met with, the
progress of the variations would be much more conspicuous in those larger
Animals, then they can be in any kind of Insects our colder Climate
affords.
These being their eyes, it affords us a very pretty Speculation to
contemplate their manner of vision, which, as it is very differing from
that of _biocular_ Animals, so is it not less admirable.
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