Pareurythoe gracilis Gustafson, 1930

Pareurythoe gracilis Gustafson View in CoL nomen nudum

Pareurythoe gracilis Gustafson, 1930: 308 View in CoL , 391, 393; Hartman 1959: 137, nomen nudum.

Remarks. Pareurythoe gracilis Gustafson, 1930 was referred to as being based on specimens collected Marshall and Gilbert Islands, but it was not described or illustrated. This is a nomen nudum (Hartman 137).

Pareurythoe heterotricha (Potts) comb. n.

( Figure 7 View Figure 7 )

Eurythoe heterotricha Potts, 1909: 369–370 View in CoL , pl. 45, figs 16, 17, pl. 46, figs 18, 19.

Type material. Maldives. Holotype of E. heterotricha ( BMNH 1924.3.1.84), Percy Sladen Trust Expedition the Indian Ocean, 1905, Mahlos Atoll, among Eurythoe specimens.

Additional material. Oman. One specimen ( UF 9535 ), Muscat Governorate, Oamanyat Islands, Three

JOURNAL OF NATURAL HISTORY

Three specimens ( UF 10521), Muscat Governorate, Qurum Beach ( 22.63°N, 58.48°E), sand,

30 January 2022, R. Laslely et al., coll. (juveniles; white; much contracted; branchiae from chaetiger 5–6 filaments; body 20–33 mm long, 1.5–2.0 mm wide, 52–61 chaetigers).

One specimen ( UF 10608 ), Muscat Governorate, E Bandar Khayran, around boat ramp facing small ( 23.52°N, 58.74°E), no depth data, 11 February 2022, M GoogleMaps . Cherneva, A GoogleMaps . Anker and N . Budaeva, coll. (pale ventrally, without posterior region; branchiae from chaetiger 3, with 4 filaments, continued to fragment; body 24 mm long, 2 mm wide, 41 chaetigers).

Diagnosis

Pareurythoe with caruncle extended along chaetigers 1–2, reaching anterior area of chaetiger 3, furrow deep. Anterior eyes reniform, 3–6 times as large as posterior round ones. Branchiae from with 1–3 stems. Median segments with furcate neurochaetae.