1st Antennae Longer Than Body

Next: Determine the body shape and the absense/ presence of unique feautures

Option 1

Cigar-shaped body

Distal spikes on prosome

Sino

Option 2

Cigar-shaped body

No distal spikes

Large feeding arms may be visible

Acartiella

Option 3

Sausage-shaped body

Asymmetrical rami

Large size relative to other zooplankton

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