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Ames, Story County, Iowa, USA
March 30, 2007
Size: 2.5 mm
Furcula 101

Manubrium: large median base
Dens: proximal segment of furcula arm
Mucro: distal segment of furcula arm (not really focused in this pic)
Retinaculum: 'clasplike appendage' on 3rd abdominal segment; holds furcula in repose
Collophore: fleshy protuberance on 1st abdominal segment used in osmoregulation

Images of this individual: tag all
Collembola - Homidia socia Collembola


'in training' you claim? Not for long anymore, I see ;-)

Note: the mucro in Entomobryidae is very very small and therefore cannot be seen on macrophotographs, even when in focus.

explication of key anatomy of Collembolans. moving to the collembola page for now.

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