| 1. | It is quick enough to trap water in the microscopic hairs on the antennule.
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| 2. | It exhibits nine terminal aesthetascs, the two longest being about 2 / 3 the length of the antennule itself.
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| 3. | The first antenna ( antennule ) has two second antenna is strongly reduced in females, and consists of numerous segments in males.
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| 4. | The first segment bore a ventral pair of large limbs, known as the antennule, which are about half to two-thirds as long as the body.
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| 5. | Its antennule is long and narrow, nearly reaching the tip of the rostrum; the antennular seta is thin, of about half the length of the antennule.
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| 6. | Its antennule is long and narrow, nearly reaching the tip of the rostrum; the antennular seta is thin, of about half the length of the antennule.
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