Perinereis nigropunctata (Horst, 1889)

Pamungkas, Joko & Glasby, Christopher J., 2015, Taxonomy of reproductive Nereididae (Annelida) in multispecies swarms at Ambon Island, Indonesia, ZooKeys 520, pp. 1-25 : 12

Perinereis nigropunctata (Horst, 1889) Fig. 6C, D

Nereis nigropunctata Horst, 1889: 171, pl. 8, figs 1-3.

Perinereis cultrifera . - Martens et al. 1995: 15-16. Not Grube.

Perinereis nigropunctata . - Hutchings et al. 1991: 256-257, fig. 10a-e.

Type locality.

Malaysia.

Material examined.

7 males (RCLA.Ann.008), 9 females (RCLA. Ann. 009), Suli, Ambon Island, Indonesia, 3°37'38.2"S, 128°18'25.0"E, coll. R. Alik, 18 March 2014 ; 19 males (RCLA.Ann.010), 17 females (RCLA. Ann. 011), Suli, Ambon Island, Indonesia, 3°37'38.2"S, 128°18'25.0"E, coll. R. Alik, 19 March 2014 ; 18 males (RCLA.Ann.012), 32 females (RCLA. Ann. 013), Hutumuri, Ambon Island, Indonesia, 3°41'27.5"S, 128°17'56.3"E, coll. E. Moniharapon, 19 March 2014 ; 1 male (RCLA.Ann.014), 4 females (RCLA. Ann. 015), Mahia, Ambon Island, Indonesia, 3°44'42.6"S, 128°11'24.6"E, coll. A.S. Leatemia, 18 March 2014 ; 1 male (RCLA.Ann.016), 1 female (RCLA. Ann. 017), Mahia, Ambon Island, Indonesia, 3°44'42.6"S, 128°11'24.6"E, coll. A.S. Leatemia, 19 March 2014 ; 1 male (RCLA.Ann.018), 4 females (RCLA. Ann. 019), Alang, Ambon Island, Indonesia, 3°46'18.2"S, 128°00'24.6"E, coll. J. Pamungkas, 19 March 2014 ; 5 males (MZB.Pol.00165), 3 females (MZB. Pol. 00166), Suli, Ambon Island, Indonesia, 3°37'38.2"S, 128°18'25.0"E, coll. R. Alik, 19 March 2014 ; 1 ex. (NTM W23793 ) , 1 female (NTM W23798 ), Alang , Ambon Island, Indonesia, 3°46'18.2"S, 128°00'24.6"E, coll. J. Pamungkas, 14 March 2009 ; 3 females (NTM W23801 ), Airlouw , Ambon Island, Indonesia, 3°46'32.5"S, 128°07'53.5 E ", coll. F. E. de Soysa, 14 March 2009 ; 5 ex. be (specimen extracted from a jar of many hundred worms in the collection of Naturalis , Leiden) (RMNH unreg.), Ambon Island, Indonesia, coll. D.S. Hoedt , 1866.

Size range.

Male: length (10-20 mm), maximum width (2.0-3.0 mm). Female: length (11-23 mm), maximum width (2.0-4.0 mm).

Diagnosis.

Perinereis species having brown, streaky pigmentation on dorsal surface (Fig. 4C, D). Paragnaths conical arranged as follows: Areas I: 7-9; II: 15-21; III: 22-35 (including lateral groups); IV: 24-36; V: 3; VI: 1 bar (rarely 2 on one side); VII-VIII: 32-43. Male and female epitokes with similar body pigmentation and natatory region extending to pygidium, but differ in number of pre-natatory chaetigers and number modified dorsal and ventral cirri. Male has pre-natatory region comprising 14 chaetigers; basally swollen dorsal cirri on chaetigers 1 to 7; basally swollen ventral cirri on chaetigers 1 to 5. Female has pre-natatory region comprising 17 chaetigers; basally swollen dorsal cirri on chaetigers 1 to 5; basally swollen ventral cirri on chaetigers 1 to 5. Also male has pygidial rosette and scalloped dorsal cirri, lacking in female.

Remarks.

The specimens examined in this study agree well the description of Hutchings et al. (1991) of this species. This is the smaller of the two wawo Perinereis .

Distribution.

Indo-west Pacific (widespread).