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2b. p 7 . Same, leg of 7th pair, exhibiting
in its interior the corresponding
Cryptoniscid leg.
2b. urs. Same, extremity of tail, showing
the Cryptoniscid uropoda in process
of formation within the Microniscid
uropoda.
2c. Cryptoniscid larva in last stage,
supposed to have developed from
the Microniscus 2a, b ; dorsal view.
2c. C. Same, cephalon and 1st pedigerous
segment from below (right inferior
antennae and left 1st leg omitted).
2c. p 7 . Same, leg of 7th pair.
2c. Urs. Same, extremity of tail, dorsal view.
PI. 93.
DajUS mysidis Kroyer.
Mvsis. Anterior part of a specimen of
Mysis mixta infested with this
parasite, viewed from left side
(antenna?, eyes and legs of the host
omitted).
9ad. Adult. oviferous female, with
attached male; ventral view.
9 ad*. Same, dorsal view.
Or. ar. Oral area, with the sternal plate ;
ventral view (right maxilliped
removed).
Lat. ar. Right part of the postoral area,
with the corresponding 5 legs and
incubatory plates; ventral view,
mp. Maxilliped.
p. Leg.
9urp. Extremity of tail, with the uropoda.
cf . Adult male, dorsal view,
cf*. Same, viewed from left side.
cfC. Same, cephalon and 1st pedigerous
segment, from below (right 1st leg
omitted),
cfurp. Same, extremity of tail, with the
rudimentary uropoda ; dorsal view.
9juv. Young female, with the incubatory
cavities not yet developed; dorsal
and ventral views.
9juv*. Same, viewed from left side.
9juv*. Same, more highly magnified, from
below (extremity of tail not drawn).
PL 94.
DajUS mysidis (continued).
9JUV 1 . Immature female,
tral views.
dorsal and ven-
9juvVC. Same,
below.
anterior part of body from
9juv 2 . Veiy young female, immediately
after the transformation; dorsal and
ventral views.
9juv. 2 *. Same, viewed from left side.
of tail.
9juv 2 . Urs. Same, extremity
cflarv. Young male in last larval stage,
dorsal and lateral views.
268
p.
Urs.
Embr.
Larv.
Notophryxus ovoides, G. 0. Sars.
X. Posterior part of body of a specimen
of Amblyops abbreviata infested
with this parasite, viewed from left
9ad.
9juv.
9juv.
Ventr
Or. ar
rap.
1.
Cfp.
cf .
cf p 2 .
Larv.
-
. Same, cephalon and 1st pedigerous
segment, from below (right inferior
antennae and right 1st leg omitted).
Same, leg of the, pair.
Same, extremity of tail, dorsal
view.
Embryo in an advanced stage, ventral
and lateral views.
1st free larval stage, taken during
Nansen's Polar Expedition, and
supposed to belong to this species;
ventral and dorsal views.
side.
PI. 95.
Adult, ovigerous female, dorsal and
ventral views.
Younger
side.
female, viewed from left
ventral view.
Same,
ar. Anterior part of ventral face of
an adult female, exhibiting on right
side the corresponding maxilliped,
incubatoiy plate, legs and coxal
plates. On left side all these parts
are removed, in order to show the
underlying large sternal plate.
Oral cone, with the projecting ends
of the mandibles.
Maxilliped.
Left incubatory plate, from the
upper face.
Leg.
Adult male, dorsal view.
Same, viewed from left side.
Same, cephalon and 1st pedigerous
segment from below (right inferior
antenna and left 1st leg omitted).
Same, leg of 2nd pair.
1st larval stage found in one of
the incubatory cavities of a female
which had discharched the greater
part of its brood ; dorsal and ventral
views.
PI. 96.
Aspidophryxus peltatus, G. 0. Sars.
X. Anterior part of a specimen of
Erythrops Goesii infested with this
parasite, viewed from left side (legs
of the host omitted).
cfad. Adult,
view.
ovigerous female, dorsal
cfad*. Same, with attached view.
male; ventral
Ventr. ar. Mediane part of ventral face of
an adult female, exhibiting anteriorly
the lai-ge frontal shield, succeeded
by the rounded gpstoral