The following genera, species and subspecies are described. Genus Diplotrema
Spencer, 1900 (62 species, of which 33 are new, and two subspecies, of which one is new):
D. acropetra Jamieson, 1997; D. armatissima Jamieson and Dyne, 1976;
D. armifera sp. nov.; D. athertoni sp. nov.; D. attenuata Jamieson, 1997;
D. australis (Michaelsen, 1889); D. bidiverticulata sp. nov.; D. bifistularis sp. nov.;
D. biloela Blakemore, 1997; D. boardmani sp. nov.; D. bulburrinensis sp. nov.;
D. capella Blakemore, 1997; D. capricorniae sp. nov.; D. conwayi sp. nov.;
D. cornigravei (Michaelsen, 1907); D. cornutheca sp. nov.; D. crateris sp. nov.;
D. daemeli (Michaelsen, 1910); D. elstobi Blakemore, 1997; D. eremius (Spencer,
1896); D. eungellae sp. nov.; D. falcatoides sp. nov.; D. fragilis Spencer, 1900;
D. glandifera (Jamieson, 1995) new combination; D. glareaphila sp. nov.;
D. gracilis sp. nov.; D. helonoma Dyne and Jamieson, 1998; D. heteropora Dyne,
1979a; D. ingrami sp. nov.; D. inornata sp. nov.; D. insularis Jamieson and Dyne,
1976; D. intermedia Jamieson and Dyne, 1976; D. lamberti sp. nov.; D. longiductis
sp. nov.; D. macleayi (Fletcher, 1890); D. magna sp. nov.; D. magnetis sp. nov.;
D. mantoni Jamieson and Dyne, 1976; D. melaleucae Jamieson and Dyne, 1976;
D. minuta Jamieson and Dyne, 1976; D. montislewisi sp. nov.; D. narayensis
Blakemore, 1997; D. nemoralis sp. nov.; D. peraeintestinalis sp. nov.;
D. planumfluvialis Dyne, 1987; D. proserpinensis Dyne and Jamieson, 1995;
D. pseudospectabilis sp. nov.; D. quasifragilis sp. nov.; D. queenslandicus
(Michaelsen, 1910); D. retractata sp. nov.; D. ridei ridei Jamieson and Dyne, 1976;
D. ridei melvillensis Jamieson and Dyne, 1976; D. rigida sp. nov.; D. scheltingai
Jamieson, 1997; D. schmardae (Beddard, 1892) species dubium?; D. shandi
Jamieson and Dyne, 1976; D. socialis Dyne, 1987; D. spectabilis sp. nov.;
D. spenceri sp. nov.; D. sulcata sp. nov.; D. tenuiseta sp. nov.; D. tyagarah Dyne,
1979; D. tyagarah carnarvoni subsp. nov. Genus Kayarmacia Jamieson, 1997
(4 species, of which two are new): K. adelphicus Jamieson, 1997; K. bursatus
sp. nov.; K. cochlearis sp. nov.; K. queenslandicus (Michaelsen, 1916). Genus
Microscolex Rosa, 1887 (3 species): M. dubius (Fletcher, 1887) (circummundane);
M. macquariensis (Beddard, 1896) (Macquarie Island); M. phosphoreus Dugès,
1837 (circummundane). Genus Neodiplotrema Dyne, 1997 (11 species):
N.? ambrosensis (Blakemore, 1997) new combination; N. altanmoui Jamieson,
1997; N. deminutionis Dyne, 1997; N. exigua Dyne, 1997; N. lacisbrontoi Dyne,
1997; N. mcdonaldi Jamieson, 1997; N. occidentalis Dyne, 1997; N. paripunctata
Jamieson, 1997; N. raveni Dyne, 1997; N. tumida Dyne, 1997; N. varionephrica
Dyne, 1997. Genus Rhododrilus Beddard, 1889 (1 species): R. kermadecensis
Benham, 1905 (Tasmania and Kermadec Island). Genus Torresiella Dyne, 1997
(1 species): T. singularis Dyne, 1997. This study includes 178 illustrations.
Evidence is reviewed supporting dismissal of the Acanthodrilidae and
Octochaetidae sensu Gates (1959, 1972); the first was based on two
symplesiomorphies (tubular prostates and holonephridia), the second on one
symplesiomorphy (tubular prostates) and one highly homoplastic apomorphy
(meronephridia).