It can also be distinguished by the row of large spines at the rear margin of the body segment known as the metasome.
2.
The metasome, or trunk, contains a looped digestive tract, gonads, and extends into a contractile stalk that connects individuals to the other members of the colony, produced by asexual budding.
3.
This species is generally similar to " A . clausi " but is usually noticeably smaller ( total length 0.8 0.9 mm ) and differs in the arrangement and size of the spines on the back of the posterior body segment ( metasome ).
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