EXTERNAL MORPHOLOGY

Body

Head = Anterior end = Cephalic region = Lip region = (Labial region) =(Lips)
- Apex of head = Head cap
"Junction" Head/Neck
Neck
"Grouping" Head + Neck
Body proper
Tail = Posterior end = Postanal part
- End = Tail end = Tail terminus = Tail tip = Tail extremity
  - Indentation = Tail end indentation = Tail notch
  - Mucro = Tail mucro = Tail ventral process = Tail terminal process = Ventral projection
    - End = Tail mucro end
  - Spike = Tail spike
    - End = Tail spike end
"Grouping" Body proper + Tail = Body behind the neck = Spherical part of body

External Morphology