Pseudonereis trimaculata

Pseudonereis trimaculata (Horst, 1924) Fig. 11 C – E Nereis (Pseudonereis) trimaculata Horst, 1924: 1. Pseudonereis trimaculata (Horst, 1924): 187–188, pl. XXXVI, figs 8, 9. Bakken 2007: 166–168, fig. 13 A – I. Hsueh 2021: 502–507, figs 8 A – F, 9 A – F, 10 A – E, 11 A – C, 12 A – F, 13 A – F, 14 A – F. Type locality. Between Geser and Seram Islands, Maluku Province, Indonesia. Material examined. MZB.Pol.00292 (1 specimen), collected by Joko Pamungkas on 23 January 2018 from Bali Island: Pemutih Beach, Pecatu Village, South Kuta District, Badung Regency, Bali Province (8°48'29.9"S, 115°06'27.3"E); MZB.Pol.00293 (2 specimens), collected by Joko Pamungkas on 15 December 2017 from Lembeh Island: Mawali Urban Village, North Lembeh District, Bitung City, North Sulawesi Province (1°26'35.3"N, 125°13'48.9"E); MZB.Pol.00295 (2 specimens), collected by Joko Pamungkas on 21 November 2017 from Ambon Island: Hutumuri Village, South Leitimur District, Ambon City, Maluku Province (3°41'46.1"S, 128°17'49.0"E); MZB.Pol.00296 (9 specimens), collected by Joko Pamungkas on 27 January 2018 from Kalimantan Island: Prapatan Urban Village, South Balikpapan District, Balikpapan City, East Kalimantan Province (1°16'53.5"S, 116°48'39.3"E). Diagnosis. Prostomium with entire anterior margin, one pair of cirriform frontal antennae and two pairs of eyes. Maxillary ring of pharynx with paragnaths, arranged in discrete areas, Areas II – IV arranged in regular comb-like rows. Area I = 1–2 conical paragnaths, in a longitudinal row when 2; Area II = 23–38 p-bar paragnaths in 4 rows; Area III = 51–69 p-bar paragnaths in 4 rows; Area IV = 50–78 including p-bar paragnaths in 4 rows additional cones and 2–4 p-bars towards jaws. Areas V and VI present as distinct groups. Area V = 1–3 large conical paragnaths present, arranged in a triangular pattern when 3; Area VI = 1 shield-shaped bar present, cones absent; Areas VII – VIII = 20–24 large conical paragnaths of similar size and interspersed p-bars present in two alternating rows. Jaws with dentate cutting edge, brown, with five or six teeth. Tentacular belt length greater than that of chaetiger 1. Tentacular cirri with distinct cirrophores; longest cirri extending to chaetigers 5–7 (Bakken 2007). Distribution and habitat. The species was found in Indonesia, Western Australia, eastern and southern Taiwan, inhabiting intertidal rocky shores. Remarks. The specimens in the present study agree well with previous descriptions and are the first MZB ’ s collection of the species.