Nereis 'sp_Ambon_NTMW19037' Glasby

Pamungkas, Joko & Glasby, Christopher J., 2015, Taxonomy of reproductive Nereididae (Annelida) in multispecies swarms at Ambon Island, Indonesia, ZooKeys 520, pp. 1-25 : 10

Nereis 'sp_Ambon_NTMW19037' Glasby Fig. 5C

Material examined.

1 female (RCLA. Ann. 052), Mahia, Ambon Island, Indonesia, 3°44'42.6"S, 128°11'24.6"E, coll. A.S. Leatemia, 19 March 2014 ; 1 male (MZB. Pol. 00173), Suli, Ambon Island, Indonesia, 3°37'38.2"S, 128°18'25.0"E, coll. R. Alik, 18 March 2014 ; 1 female (MZB. Pol. 00174), Suli, Ambon Island, Indonesia, 3°37'38.2"S, 128°18'25.0"E, coll. R. Alik, 19 March 2014 ; 1 male (NTM W19155 ), Waimahu Beach , Ambon Island, coll. Mr Talakua, 27 March 1997 ; 1 male (NTM W25893 ), Suli , Ambon Island, Indonesia, 3°37'38.2"S, 128°18'25.0"E, coll. R. Alik, 19 March 2014 .

Size range.

Female: length (15 mm), maximum width (2.0 mm). Male: length (16 mm), maximum width (2.0 mm).

Diagnosis.

Nereis species lacking pigmentation (Fig. 5C). Paragnaths include cones and bars arranged as follows: Areas I: 0-1 cone; II: 15-20 cones; III: 19-26 cones; IV: about 45 in large crescentic patch includes cones and bars; V: 0; VI: 15-20 small patch of minute cones; VII-VIII: one narrow band of 50-60 cones with several additional rows at right angles. Male and female epitokes both with 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 22-23 chaetigers; basally swollen dorsal cirri on chaetigers 1 to 7; basally swollen ventral cirri on chaetigers 1 to 5 or 6. Female has pre-natatory region comprising 26 chaetigers; basally swollen dorsal cirri on chaetigers 1 to 5; basally swollen ventral cirri on chaetigers 1 to 4. Also male has pygidial rosette and scalloped dorsal cirri in natatory region (except near pygidium where dorsal cirri become smooth and tapered again), rosette and scalloped dorsal cirri lacking in female.

Remarks.

This appears to be a new species, and will be described when further specimens, including atokous individuals become available. It was listed by Pamungkas (2015) as Nereis sp.