| It has a small, depressible head piece, with a narrow channel running through it. |
| The pelvic fins are shorter than the pectorals, have a poorly developed membrane, and are depressible into ventral grooves. |
| It is indicated for use in all those cases in which a soft, depressible and elastic surface is to be provided to the bases of the plate prosthesis, to relieve the pain in the sensible areas. |
| Palatine with 3-4 rows of depressible teeth, teeth directed posteromedially. |
| The mortar can also be used in a direct-fire mode, being depressible to five degrees below the vehicle's horizontal datum. |
| User selectable switches for setting the desired functional operation of the apparatus and a manually depressible panic button are also provided. |
