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