Fig. 7.7.

   Copepods: (A) Calamoecia ampulla – body elongated, with long first antennae (FA). Small calanoid copepod. Male fifth legs need to be examined for identification of species. Scale bar 100 µm; (B) Calamoecia ampulla – Male fifth legs (posterior aspect). Scale bar 50 µm; (C) Boeckella fluvialis – male fifth legs (posterior aspect). Body elongated, with long first antennae. Relatively large calanoid copepod. Scale bar 100 µm; (D) Gladioferens pectinatus – male fifth legs (anterior aspect). Body elongated, with long first antennae. Relatively large calanoid copepod in fresh and salt water. Scale bar 100 µm; (E) Mesocyclops sp. – body relatively stout, with short first antennae (FA). Scale bar 200 µm; (F) Parastenocaris sp. – body cylindrical, with very short first antennae (FA). Bottom dwelling, but may also appear in plankton.