In synonymy:
Pisaurellus Roewer, 1961 = Perenethis L. Koch, 1878 (Sierwald, 1997: 395)

type Perenethis venusta L. Koch, 1878; gender feminine

N.B.: considered a senior synonym of Pisaurellus Roewer, 1961b: 40 [urn:lsid:nmbe.ch:spidergen:05163] (type P. badius Roewer, 1961) by Sierwald, 1997: 395 (by synonymy of the type species).

In synonymy:
Perenethis badius (Roewer, 1961) = Perenethis symmetrica (Lawrence, 1927) (Sierwald, 1997: 395, sub P. badicus, lapsus).
Perenethis berlandi (Roewer, 1955, T from Maypacius) = Perenethis simoni (Lessert, 1916) (Blandin, 1975: 379).
Perenethis huberti Blandin, 1975 = Perenethis symmetrica (Lawrence, 1927) (Sierwald, 1989a: 97).
Perenethis kawangisa Barrion & Litsinger, 1995 = Perenethis venusta L. Koch, 1878 (Raven & Hebron, 2018: 287).
Perenethis lejeunei Blandin, 1975 = Perenethis symmetrica (Lawrence, 1927) (Sierwald, 1989a: 97).
Perenethis parkinsoni Dahl, 1908 = Perenethis venusta L. Koch, 1878 (Sierwald, 1997: 396).
Perenethis stilatus (Karsch, 1878) = Perenethis venusta L. Koch, 1878 (Raven & Hebron, 2018: 287).
Perenethis straeleni Roewer, 1955 = Perenethis simoni (Lessert, 1916) (Blandin, 1975: 379).

Nomina dubia:
Perenethis brevipes (Strand, 1906b: 685, 1908l: 45, pl. 2, f. 11, j, Ethiopia, originally in Tetragonophthalma) -- Blandin, 1975: 384.
Perenethis rectifasciata (O. Pickard-Cambridge, 1885b: 78, j, Pakistan or India, originally in Ocyale) -- Sierwald, 1997: 398.
Perenethis unifasciata (Doleschall, 1859: 10, pl. 6, f. 6, m, Philippines to Australia/Queensland, originally in Dolomedes) -- Sierwald, 1997: 398, (but see Barrion & Litsinger, 1995: 348, f. 206a-f, f).

Ocyale dentifasciata O. Pickard-Cambridge, 1885b: 79 (Df).
Pisaura dentifasciata Simon, 1898a: 289.
Perenethis dentifasciata Sierwald, 1989a: 97 (Tf from Pisaura).
Perenethis dentifasciata Sierwald, 1997: 388, f. 48-50 (f).

Tetragonophthalma fascigera Bösenberg & Strand, 1906: 306, pl. 13, f. 329 (Df).
Tetragonophthalma fascigera Yaginuma, 1960: 81, f. 74.5 (f).
Tetragonophthalma fascigera Paik, 1970b: 87, f. 5-7 (m).
Perenethis fascigera Yaginuma, 1971: 81, f. 74.5 (f).
Perenethis fascigera Paik, 1978e: 375, f. 170.1-4 (mf).
Perenethis fascigera Song, 1980: 177, f. 96a-c (f).
Perenethis fascigera Hu, 1984: 260, f. 274.1-3 (f).
Perenethis fascigera Yaginuma, 1986a: 173, f. 95.5 (mf).
Perenethis fascigera Song, 1987: 209, f. 168 (f).
Perenethis fascigera Chikuni, 1989b: 106, f. 3 (mf).
Perenethis fascigera Chen & Gao, 1990: 136, f. 170a-b (mf).
Perenethis fascigera Chen & Zhang, 1991: 225, f. 233.1-2 (f).
Perenethis fascigera Song, Zhu & Chen, 1999: 348, f. 203M-N (f).
Perenethis fascigera Namkung, 2002: 349, f. 21.4a-b (mf).
Perenethis fascigera Namkung, 2003: 351, f. 21.4a-b (mf).
Perenethis fascigera Zhang, Zhu & Song, 2004d: 387, f. 97-103, 214-219 (mf).
Perenethis fascigera Tanikawa & Ono, 2009: 220, f. 28-30 (mf).
Perenethis fascigera Yin et al., 2012: 887, f. 445a-c (f).
Perenethis fascigera Kim & Lee, 2013: 78, f. 51A-D (mf).

Tetragonophthalma phylla Simon, 1898a: 293, 295, f. 300 (m, misidentified).
Tetragonophthalma simoni Lessert, 1916: 577, f. 11-14 (Dmf).
Tetragonophthalma stuhlmanni Berland, 1922: 78, f. 21-23 (mf, misidentified).
Tetragonophthalma stuhlmanni Berland, 1932b: 274, f. 412 (m, misidentified).
Maypacius berlandi Roewer, 1955b: 160 (Dmf).
Perenethis simoni Roewer, 1955b: 262, f. 97 (m).
Perenethis straeleni Roewer, 1955b: 265, f. 98a-e (Dm).
Perenethis simoni Blandin, 1974a: 314, f. 11, 17 (mf).
Perenethis simoni Blandin, 1975: 379, f. 1-7 (mf, S).
Perenethis simoni Blandin, 1976c: 921, f. 3, 7c, 9 (m).
Perenethis simoni Sierwald, 1997: 391, f. 31-33, 51-52, 54-56, 73-74 (mf).
Perenethis simoni Dippenaar-Schoeman et al., 2020q: 48, 9 f. (mf).

Tetragonophthalma sindica Simon, 1897i: 295 (Df).
Perenethis indica Pocock, 1900a: 246.
Perenethis sindica Sierwald, 1997: 395, f. 36-41, 59-72 (f, Dm).
Perenethis sindica Zhang, Zhu & Song, 2004d: 387, f. 104-110 (mf).

Tetragonophthalma symmetrica Lawrence, 1927: 46, pl. 2, f. 33, pl. 3, f. 74 (Df).
Pisaurellus badius Roewer, 1961b: 40, f. 5a-e (Dm).
Perenethis huberti Blandin, 1975: 382, f. 8-9 (Df).
Perenethis lejeunei Blandin, 1975: 383, f. 10-12 (Dmf).
Pisaurellus badius Blandin, 1976c: 937, f. 2, 7b, 8, 35 (m; N.B.: f. 8 is Perenethis simoni per Sierwald, 1997: 396).
Perenethis symmetrica Sierwald, 1989a: 97 (S).
Perenethis symmetrica Sierwald, 1997: 395, f. 34-35, 58, 81 (f, Dm, S).
Perenethis symmetrica Dippenaar-Schoeman et al., 2020q: 49, 8 f. (mf).

Perenethis venusta L. Koch, 1878a: 980, pl. 85, f. 7 (Df).
Dolomedes stilatus Karsch, 1878c: 814 (Dm) [urn:lsid:nmbe.ch:spidersp:019656].
Perenethis venusta Thorell, 1881: 372 (Dm).
Perenethis parkinsoni Dahl, 1908: 228, f. 7 (Df).
Perenethis venusta Chrysanthus, 1967a: 421, f. 58 (f, removed from S of P. unifasciata).
Perenethis unifasciata Chrysanthus, 1967a: 422, f. 53-57 (mf, misidentified, per Sierwald, 1997: 396).
Perenethis kawangisa Barrion & Litsinger, 1995: 205a-i (Dm) [urn:lsid:nmbe.ch:spidersp:019741].
Perenethis venusta Sierwald, 1997: 396, f. 42-47, 53, 57, 75-76 (mf, S).
Perenethis venusta Chen & Chen, 2002: 32, f. 1A-F, 2A-D (mf).
Perenethis unifasciata Sunil Jose, Sudhikumar & Sebastian, 2007: 127, f. 1a-f (f).
Perenethis venusta Tanikawa & Ono, 2009: 220, f. 31-32 (mf).
Perenethis venusta Raven & Hebron, 2018: 287, f. 4f, 5a, 75a-c, 76a-d (mf, S of Dolomedes stilatus and Perenethis kawangisa).
Perenethis venusta Serita, 2021b: 105, f. 1a-b (f).