• A small (female max length 0.6 mm) macrothricid
• Intestine convoluted
• Antennal setae formula 0-0-1-3 / 1-1-3
• Postabdomen bilobed, preanal part of postabdomen with a serrate margin
• Antennules divergently curved
• Valves reticulated

• Boggy pools with an accumulation of flocculent organic material (1).

• Feeds on flocculent organic material which is gathered by the first trunk limb. S. serricaudatus is not capable of filter feeding due to a lack of a respiratory current (1).

• Streblocerus serricaudatus is a true burrower and burrowing is accomplished solely by the antennae. Within the sediments S. serricaudatus moves little and prefers to remain hidden, though it is capable of swimming slowly but jerkily (1).

(1) FRYER, G. 1974. Evolution and adaptive radiation in the Macrothricidae (Crustacea: Cladocera): a study in comparative functional morphology and ecology. Philos. Trans. R. Soc. Lond., B, Biol. Sci. 269: 137-274.