Scapus

The term scapus (trunk or shaft) denotes in anatomy

• the birds the firm quill pen with a contour feather ,
• of the insects
  • the first antenna segment (basal part) of a flagellum antenna, see antennae (biology)
  • in the case of two-winged birds, the shaft of the swinging bulb , see holder
• the arachnids a structure in the female of some species the vulva partially covered
• the main stem of the sea ​​feathers ,
• of the sea ​​anemones the lower, longer and thick-walled cylinder that surrounds the stem

This is a disambiguation page for differentiating between several terms identified with the same word.