Each caudal ramus with
from the end on the right antenna has no appendage
Left fifth leg shorter than the right fifth leg and reaching beyond the first segment of the right exopod
of left fifth leg about 1/3 the length of exopod 1, view at:
Endopod of the right fifth leg longer than the first exopod of the right fifth leg
Terminal claw of the right fifth leg not angled, but with a
in proximal third (1), view at:
Specimen approximately 1 mm long
Found in lakes and ponds of the northeastern states.
- a calanoid swimming (886 KB).
- a calanoid feeding (831 KB).
- virtual focus of the 5th leg (1.71 MB)
Barcode: Ribosomal DNA-28S D3 expansion segment
National Center for Biotechnology Information GenBank
for individuals of this species
To learn more about barcoding,
: Information from the Great Lakes Science Center, USGS