6. FOOD AND FEEDINQ
177
endopod may be fused to form one uniform, plate-like appendage. The
first, second, and third pairs of thoracic limbs of many species are
specially modified for feeding. The limbs have a long segmented
endopod and a shorter exopod (Fig. 60) ; the exopod has long, plumose
FIG. 61. Maxillules of (a) Thysanopoda cristata, (b) Pseudeuphausia latifrons,
(After Mauchline, 1967b.)
(c) Euphausia lucens, and (d) Nernatobrachion jlexipes.
setae and forms a paddle which produces feeding currents which pass
inwards to the " food groove '' between the appendages. The first
thoracic limb has long, plumose setae present on the coxa and these
extend forward along the groove as far as the mandibles. The inner
177
endopod may be fused to form one uniform, plate-like appendage. The
first, second, and third pairs of thoracic limbs of many species are
specially modified for feeding. The limbs have a long segmented
endopod and a shorter exopod (Fig. 60) ; the exopod has long, plumose
FIG. 61. Maxillules of (a) Thysanopoda cristata, (b) Pseudeuphausia latifrons,
(After Mauchline, 1967b.)
(c) Euphausia lucens, and (d) Nernatobrachion jlexipes.
setae and forms a paddle which produces feeding currents which pass
inwards to the " food groove '' between the appendages. The first
thoracic limb has long, plumose setae present on the coxa and these
extend forward along the groove as far as the mandibles. The inner