Judging from incomplete information, free-swimming larval and juvenile forms consume microorganisms as food; the pre-adult forms reside within swarms of nutrient-rich oceanic plankton. Adult forms sink to deeper ocean levels for breeding. Newly hatched individuals rise into the shallow planktonic layer to start feeding and maturing through the larval and juvenile stages. Males are able to swim faster than females, by virtue of the males' strong first pair of abdominal segments, giving them a survival edge, yet the only purpose of the males may be to mate once.

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