FAMILY                      Guyanemidae Petter, 1975 [1974?; Diagnostic; Aragort, Alvarez, Iglesias, Leiro & Sanmartin 2002 p.935]
SUBFAMILY                     Guyaneminae Petter, 1975
GENUS                              Guyanema Petter, 1974
SPECIES                                 Guyanema ancistri Petter, 1987:73 [host Ancistrus in Pisces]
SPECIES                                 Guyanema baudi Petter & Dloughy, 1985:168 [host Hoplias malabaricus in Pisces]
SPECIES                                 Guyanema longispiculum Moravec, Prouza & Royero, 1996:227 [host Loricariichthys brunneus in Pisces]
SPECIES                                 Guyanema raphiodoni Moravec, Kohn & Fernandes, 1993:225 [host Raphiodon vulpinus in Pisces]
TYPE SPECIES                            Guyanema seriei Petter, 1974
SUBSPECIES                                Guyanema paraguyaensis Petter & Dlouhy, 1985
SUBSPECIES                                Guyanema seriei Petter, 1974
GENUS                              Histodytes Aragort, Alvarez, Iglesias, Leiro & Sanmartin, 2002:938 [Type is Histodytes microocellatus]
SPECIES                                 Histodytes microocellatus Aragort, Alvarez, Iglesias, Leiro & Sanmartin, 2002:934 [Parasite of Raja microocellata in Pisces]
GENUS                              Moravecia Ribu & Lester, 2004:60 [Type is Moravecia australiensis]
SPECIES                                 Moravecia australiensis Ribu & Lester, 2004:60 [Queensland (marine), Parasite of Tragulichthys jaculiferus in Pisces]
GENUS                              Pseudodelphis Adamson & Roth, 1990 [Type is P. oligocotti]
SPECIES                                 Pseudodelphis limnicola Brugni & Viozzi, 2006:135 [Argentina; Parasite of Percichthys trucha in Pisces]
TYPE SPECIES                            Pseudodelphis oligocotti Adamson & Roth, 1990:510 [ host Oligocottus maculosus in Pisces]
SUBFAMILY                     Travassosneminae Moravec, 2007
GENUS                              Ichthyofilaria Yamaguti, 1935:337
SPECIES                                 Ichthyofilaria argentinensis Incorvaia, 1999:440 [Host Merluccius hubbsi in Pisces; Redescription; Timi, Navone & Sardella 2001 p.140]
SPECIES                                 Ichthyofilaria bergensis (Wulker, 1930) [syn. Koie 1993 p.229]
                                        [=Philometra bergensis Wulker, 1930]
SPECIES                                 Ichthyofilaria canadensis Appy, Anderson & Khan, 1985:1590 [host Lycodes lavalaei in Pisces]
TYPE SPECIES                            Ichthyofilaria dasycotti Yamaguti, 1935
SPECIES                                 Ichthyofilaria japonica Moravec & Nagasawa, 1985:211 [host Sebastes schlegeli in Pisces]
GENUS                              Travassosnema Costa, Moreira & de Oliveira, 1991:437 [Type is T. travassosi]
TYPE SPECIES                            Travassosnema travassosi Costa, Moreira & de Oliveira, 1991:438 [ host Acestrorhynchus lacustris in Pisces]
SUBSPECIES                                Travassosnema paranaensis Moravec, Kohn & Fernandes, 1993
SUBSPECIES                                Travassosnema travassosi Costa, Moreira & de Oliveira, 1991:438