  The Carina nebula hosts a large number of globulettes. The majority are of
planetary mass, but there are also those with masses of several tens up to a
few hundred Jupiter masses. We carried out radio observations of molecular line
emission in 12CO and 13CO (2-1) and (3-2) of 12 larger objects in addition of
positions in adjacent shell structures using APEX. All selected objects were
detected with radial velocities shifted relative to the emission from related
shell structures and background molecular clouds. Globulettes along the western
part of an extended dust shell show a small spread in velocity with small
velocity shifts relative to the shell. This system of globulettes and shell
structures in the foreground of the bright nebulosity surrounding the cluster
Trumpler 14 is expanding with a few km/s relative to the cluster. The Carina
globulettes are compact and denser than objects of similar mass studied
previously in the Rosette nebula. Some globulettes in Tr 14 are located far
from any shell structures. These objects move at a similar speed as the
globulettes along the shell. The distribution and velocities of the globulettes
studied suggest that they have originated from eroding shells and elephant
trunks.
