See text Cryptaulaxella (from Greek κρυπτός 'hidden' and αὖλαξ 'furrow') is a genus of kinetoplastids.

Later, in 1948, Skuja renamed it to Cryptaulax, and considered it to be a type of cryptomonad.

[4] Because Skuja had clearly misidentified the flagellate as a cryptomonad, Vørs[5] argued that at least some species should be placed in the euglenozoan genus Rhynchobodo, but this opinion did not reach consensus.

The similarity of the general morphology of C. akopus with other species that have been studied in more detail and deemed to be euglenozoan support the argument that the genus is euglenozoan.

In 1996, due to the name Cryptaulax being preoccupied by an insect genus, it was changed to Cryptaulaxoides.