Perinereis nigropunctata

Perinereis nigropunctata (Horst, 1889) Fig. 9 A – C Nereis nigropunctata Horst, 1889: 171–174, Pl. VIII, figs 1–3. Perinereis nigropunctata. – Hutchings et al. 1991: 256 –257, fig. 10 a – e. Pamungkas and Glasby 2015: 18, fig. 6 C, D. Type locality. Malaysia. Material examined. MZB.Pol.00286 (4 specimens), collected by Joko Pamungkas on 21 November 2017 from Ambon Island: Leahari Village, South Leitimur District, Ambon City, Maluku Province (3°42'32.1"S, 128°16'10.2"E); MZB.Pol.00290 (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.00340 (1 specimen), collected by Joko Pamungkas on 24 November 2017 from Warmar Island: Wangel Village, Aru Islands District, Aru Islands Regency, Maluku Province (5°45'05.1"S, 134°11'43.2"E); MZB.Pol.00341 (5 specimens), collected by Joko Pamungkas on 19 December 2017 from Barrang Lompo Island: Barrang Lompo Village, Sangkarang Island District, Makassar City, South Sulawesi Province (5°02'45.7"S, 119°19'43.4"E). Comparative material. Perinereis nigropunctata as heteronereids locally known as ‘ laor / wawo ’. MZB.Pol.00165 (5 males), MZB.Pol.00166 (3 females), RCLA.Ann.008 (7 males), RCLA.Ann.009 (9 females), RCLA.Ann.010 (19 males) and RCLA.Ann.011 (17 females), collected by Robert Alik on 18–19 March 2014 from Ambon Island: Suli Village, Salahutu District, Central Maluku Regency, Maluku Province (3°37'38.2"S, 128°18'25.0"E); RCLA.Ann.012 (18 males), RCLA.Ann.013 (32 females), collected by Eduard Moniharapon on 19 March 2014 from Ambon Island: Hutumuri Village, South Leitimur District, Ambon City, Maluku Province (03°41'27.5"S, 128°17'56.3"E); RCLA.Ann.014 (1 male), RCLA.Ann.015 (4 females), RCLA.Ann.016 (1 male) and RCLA.Ann.017 (1 female), collected by Abraham S. Leatemia on 18–19 March 2014 from Ambon Island: Mahia Subvillage, Urimessing Village, Nusaniwe District, Ambon City, Maluku Province (3°44'42.6"S, 128°11'24.6"E); RCLA.Ann.018 (1 male) and RCLA.Ann.019 (4 females), collected by Joko Pamungkas on 19 March 2014 from Ambon Island: Allang Village, West Leihitu District, Central Maluku Regency, Maluku Province (03°46'18.2"S, 128°00'24.6"E); Perinereis nigropunctata. ZMH - ANN-P 16552 (4 specimens), collected from Western Australia. Diagnosis. Body color in alcohol cream-coffee brown with brown pigmentation on dorsum. Prostomium trapezoidal with deep median furrow anteriorly. Eyes small with distinct lenses. Palps with robust, short palpophores and globular palpostyles. Antennae short and triangular. Longest tentacular cirri extending to chaetiger 3. Peristomium relatively long. Pharynx with conical paragnaths on both rings, smooth bars present on Areas VI, arranged as follows. Area I = 4–9; Area II = 12–39 in 2 curved rows; Area III = 21–35 sometimes with two or three cones displaced laterally, separate from main group; Area IV = 18–42; Area V = 3 in triangle (very rarely 1); Area VI = 1 bar; Areas VII – VIII = 32–46 in two rows. Area IV without bars. Paragnaths on oral ring tend to be larger than those on maxillary ring. Neurochaetae with homogomph spinigers and 1–3 robust heterogomph falcigers in supra-acicular fascicle; heterogomph falcigers and spinigers in subacicular fascicle (Hutchings et al. 1991). Distribution and habitat. The species was found in Indo-West Pacific, inhabiting intertidal rocky shores. Remarks. The specimens in the present study agree well with previous descriptions of Hutchings et al. (1991). Morphology of the reproductive stage of this species is similar to that of Perinereis helleri. Characteristic features include a single short bar-shaped paragnath on each Area VI. While P. nigropunctata is one of the most abundant wawo worms, this species was not found among nyale worms. The non-reproductive stage specimens obtained in the present work complement the collection of this species at MZB.