Duboisiella Baer, 1938 (original description)
Lauroia Proença, 1938 (original description)
Lauronema Almeida, 1938 (original description)
Laurotravassoxyuris Vigueras, 1938 (original description)
Lecithurus Pigulewsky, 1938 accepted as Tubulovesicula Yamaguti, 1934 (original description)
Mordvilkoviaster Pigulewsky, 1938 accepted as Aponurus Looss, 1907 (original description)
Toxodinium da Cunha, 1938 (original description)
Travassasella Faust & Tang, 1938 (original description)
Travassophora Borgmeier, 1938 (original description)
Travassospirura Mönnig, 1938 accepted as Spirura Blanchard, 1849 (original description)
Travassosstomum Bhalerao, 1938 (original description)
Travassozolaimus Vigueras, 1938 accepted as Alaeuris Thapar, 1925 (original description)
Travnema Pereira, 1938 (original description)
Trichotravassosia Lent & Freitas, 1938 (original description)
Tricotyle Manter, 1938 (original description)