sternal apophysis

sternal apophysis
(ARTHROPODA: Insecta)
One of a pair of lateral apodemal arms of the eusternum marked by pits joined by a sulcus, thus dividing the eusternum into a basisternum and a sternellum; in higher insects they arise in the midline and separate internally, forming the Y-shaped furca; see pleural apophysis.

Online Dictionary of Invertebrate Zoology. . 2005.

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