Chloeia pinnata Moore, 1911

Chloeia pinnata Moore, 1911: 239–243, Pl. 15, Figs 1–6; Berkeley & Berkeley 1939: 323; Hartman 1940: 206–207, Pl. 31, Figs 10–13; Hartman 1959: 132; Hartman 1963: 8; Loi 1980: 127; Kudenov 1995: 209–213, Figs 7.1, 7.2; Barroso & Paiva 2011: 422, Tab. 1; Yánez-Rivera & Salazar-Vallejo 2022: 521–523, Figs 1B, 2, 10 (redescr.).

Chloeia rosea?: Fauvel 1943: 7 (non Potts, 1909).

Diagnosis. Chloeia with bipinnate branchiae from chaetiger 4, colorless, progressively smaller posteriorly; anterior eyes 2× larger than posterior ones; caruncle with about 10 folds; notochaetae furcates, without harpoon chaetae; neurochaetae spurred.

Remarks. Chloeia pinnata Moore, 1911 was described from Southern California, and it has been redescribed elsewhere (Yáñez-Rivera & Salazar-Vallejo 2022). It belongs in the group tumida by having bipinnate branchiae from chaetiger 4, progressively smaller posteriorly, and no pigmentation pattern. It resembles C. keablei sp. n., described above with specimens from The Philippines to Australia, because both species have a tapered caruncle, and colorless bipinnate branchiae. However, these two species can be separated by the relative size of eyes, type of harpoon notochaetae, and neurochaetae. In C. pinnata, the anterior eyes are 2× larger than posterior ones, its harpoon notochaetae have spurs, and neurochaetae are spurred, whereas in C. keablei, anterior eyes are 4× larger than posterior ones, harpoon notochaetae have no spurs or smooth tines, and its neurochaetae are all furcates with small minor tines.