N.B.: The name of the family is formed correctly in accordance with ICZN article 29.3.1., based on the stem of the genitive singular (Paratropidis) of the name of the type genus (Paratropis) (contra Murphy & Roberts, 2015: viii). Furthermore a wrong spelling would be protected by ICZN article 29.5.

In synonymy:
Glabropelma Raven, 1985 = Melloina Brignoli, 1985 (Platnick, 1989b: 112)

Homonym replaced:
Melloa Schenkel, 1953 -- see Melloina

Anisaspis bacillifera Simon, 1892a: 78.
Anisaspis tuberculata Simon, 1892e: 550 (Df).
Anisaspis tuberculata F. O. Pickard-Cambridge, 1896: 728, pl. 44, f. 3-5 (f).
Anisaspis tuberculata Raven, 1985a: 122, f. 165-170.

Anisaspoides gigantea F. O. Pickard-Cambridge, 1896: 726, pl. 34, f. 37 (Df).

M. Brignoli, 1985: 380, replacement name for Melloa Schenkel, 1953a: 3, type M. gracilis Schenkel, 1953, preoccupied; transferred here from the Theraphosidae by Raven, 1985a: 122; objective senior synonym of Glabropelma Raven, 1985a: 122 (superfluous replacement name for Melloa).

Melloa gracilis Schenkel, 1953a: 4, f. 4a-c (Dm).
Melloina gracilis Brignoli, 1985: 380.
Glabropelma gracilis Raven, 1985a: 122, f. 16-17 (m).
Melloina gracilis Raven, 1999: 819, f. 2A-H (m).

Melloina rickwesti Raven, 1999: 821, f. 3A-E, 4A-E, 5A-D (Df).

Melloina santuario Bertani, 2013: 102, f. 1-17 (Dmf).

Paratropis elicioi Dupérré, 2015c: 328, f. 1-13 (Dmf).

Paratropis papilligera F. O. Pickard-Cambridge, 1896: 723, pl. 34, f. 1, 6-8, 23, pl. 35, f. 17 (Dmf).
Paratropis papilligera Simon, 1903a: 874, f. 1032.

Paratropis sanguinea Mello-Leitão, 1923a: 36 (Df).

Paratropis scruposa Simon, 1889m: 215 (Df).
Paratropis scrupea Simon, 1892a: 78, f. 78-79 (f).
Paratropis scruposa Raven, 1985a: 122, f. 171-178.

Paratropis seminermis Caporiacco, 1955: 271 (Df).

Paratropis tuxtlensis Valdez-Mondragón, Mendoza & Francke, 2014: 4, f. 1-56, 58-61 (Dmf).