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13 Cards in this Set

  • Front
  • Back
cl` hirudinea
Satae not present, body segments indistict suckers at both ends or one posterior
Cl oligochAETA
satae present, distinct segments, no parapodia. (fleshy appendages)
cl polychaeta
satae present, segments distinct, parapodia present.
phylum trilobita
only first appendage is differentiated, found in fossil form
phylum chelicerata
no antennae,but chelicera (pinchers) present.
cl merostomata
5or 6 abdominal appendages modified as gills, very long, stiff, spine-like telson (tail)
cl arachnida
body divided into cephalothorax and abdomen, segmentation obscure, 4 pairs of walking legs.
phylum crustacea
two pairs of antennae
phylum unaramia
one pair of antennae
subphylum insecta
not more than three pairs of legs on thorax, commonly ith wings
subphylum myripodia
with 15 or more pairs of jointed legs along body.
cl chilopoda
one pair of legs per body segment
cl dilopoda
two pairs of legs per body segment.