  We comment on the investigation of the connection between chaos and
dynamically generated entanglement in Phys. Rev. E, \textbf{83}, 016207,
(2011). While, in the referred paper, the authors give an explicit example of a
state initially localized in the regular region and still has entanglement
properties similar to the states localized in the chaotic region, a few
clarifications related to previous works are in order. Firstly, it is crucial
to point out that such a behavior can occur for states initially localized near
the border between the chaotic region and regular island, which seems to be the
case in the example provided in the referred paper. We comment on the time
evolution of such states and the extent to which these can be regarded as
having "regular dynamics". Secondly, the degree to which entanglement is
correlated with the chaos in the system is better understood when we analyze
the same initial state and increase the chaoticity in the system gradually. We
also discuss in what capacity entanglement can be regarded as a signature of
chaos in such studies.
