omatic plate
corresponding respectively to appendages I, II, III, and to
appendage IV (see fig. 68).
d, Second plate of the prosoma-carrying appendage V.
e, Third plate of the prosoma-carrying appendage VI. The prae-genital
somite is absent.
1, First somite of the opisthosoma.
2, Second do.
S, Prosomatic tracheal aperture between legs IV and V.
S' and S", Opisthosomatic tracheal apertures.
10, Tenth opisthosomatic somite.
an, Anus.

(Original.)]

[Illustration: FIG. 70.--_Garypus litoralis_, one of the
Pseudoscorpiones. Ventral view.

I to VI, Prosomatic appendages.
o, Sterno-coxal process of the basal segment of the second appendage.
1, Sternite of the genital or first opisthosomatic somite; the
prae-genital somite, though represented by a tergum, has no
separate ternal plate.
2 and 3, Sternites of the second and third somites of the
opisthosoma, each showing a tracheal stigma.
10 and 11, Sternites of the tenth and eleventh somites of the
opisthosoma.
an, Anus.

(Original by Pocock and Pickard-Cambridge.)]

[Illustration: FIG. 71.--_Garypus litoralis_, one of the
Pseudoscorpiones. Dorsal view.

I to VI, The prosomatic appendages.
o, Eyes.
prae-gen, Prae-genital somite.
1, Tergite of the genital or first opisthosomatic somite.
10, Tergite of the tenthsomite of the opisthosoma.
11, The evanescent eleventh somite of the opisthosoma.
an, Anus.

(Original.)]

Order 6. Pseudoscorpiones = Chelonethi, also called Chernetidia (see
figs. 70, 71, 72).--Prosoma covered by a single dorsal shield, at most
furnished with one or two diplostichous lateral eyes; sternal elements
obliterated or almost obliterated. Appendages of the 1st pair
bisegmented completely chelate, furnished with peculiar organs, the
_serrula_ and the _lamina_. Appendages of 2nd pair very large and
completely chelate, their basal segments meeting in the middle line,
as in the Uropygi, and provided in front with membranous lip-like
processes underlying the proboscis. Appendages of the 3rd, 4th, 5th
and 6th pairs similar in form and function, tipped with two claws,
their basal segments in contact in the median ventral line. The
prae-genital somite wide, not constricted, with large tergal plate,
but with its sternal plate small or inconspicuous. Opisthosoma
composed, at least in man