M. D.  Hooge and Rocha, C. E. F., ?Acoela (Acoelomorpha) from the northern beaches of the state of São Paulo, Brazil, and a systematic revision of the family Otocelididae?, Zootaxa, vol. 1335, pp. 1 - 50, 2006.

E.  Westblad, ?Studien über skandinavische Turbellaria Acoela. IV.?, Ark Zool, vol. 38A, pp. 1 - 56, 1946.

J.  Dörjes, ?Die Acoela (Turbellaria) der deutschen Nordseeküste und ein neues System der Ordnung.?, Z zool Syst Evolutionsforsch, vol. 6, pp. 56 - 452, 1968.