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Loricifera

Greek: lorica = breastplate, corselet; fene = to bear
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LORICIFERA HAVE/ARE

Bilaterally symmetrical
Distinct head, neck and trunk region
An eversible head and protrusible mouth cone with stylets
A trunk covered by a cuticle case of six longitudinal plates with forward directed spines at the anterior end.
Larval instars separated by moults
A well-developed brain and ventral nerve cord
A pseudocolomic hydrostatic skeleton
A through gut with terminal anus
Separate sexes
Marine

So far only one species has been described (in 1983, see right), but there are thought to be more. Recently (2010) 3 new species have been found in the Mediterranean, 200 m deep in anoxic sediment - an environment that was previously thought to support only bacteria. They are less than 3 mm long and cling to sedimentary particles; this makes detection difficult. They have an eversible, spiny stylets as found in the Kinorhynchans, but it is not known if it is everted in the same manner.

Loricifera
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