Trouble with terms? See Cladoceran
Anatomy for help. |
Leptodoridae
Large (>8mm) with a segmented tail
Leptodora kintii
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Cercopagidae
6-8mm with spiny tails making up >3/4 of this length
Cercopagis pengoi and Bythotrephes longiramus
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Holopedidae
0.55-2.2mm with an incomplete carapace, a gelatinous sheath and
a short true tail
Holopedium gibberum
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Polyphemoidea
0.8-2.0mm with an incomplete carapace and a long true tail
Polyphemus pediculus
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Daphnidae
inconspicuous 1st antennae, <10 setae on the dorsal branch of
the 2nd antennae, may have a rostrum but not an extended beak
18 Great Lakes species in 4 genera
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Sididae
>14 setae on the dorsal branch of the 2nd antennae
5 Great Lakes species in 4 genera
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Macrothricidae
Long 1st antennae attached at the front of the head
8 Great Lakes species in 6 genera
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Moinidae
0.5-0.6mm Long, flexible, conspicuous first antennae and large (1/3
length) head
Moina micrura
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Chydoridae
1st antennae covered by a beak
32 Great Lakes species in 15 genera
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Bosminidae
Tusklike 1st antennae
Bosmina longirostris and Eubosmina coregoni
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