Lee, Yen-Ling; Glasby, Christopher J. (2015). A new cryptic species of Neanthes (Annelida: Phyllodocida: Nereididae) from Singapore confused with Neanthes glandicincta Southern, 1921 and Ceratonereis (Composetia) burmensis (Monro, 1937). The Raffles Bulletin of Zoology. Supplement 31: 75-95.

290845

urn:lsid:zoobank.org:pub:A039A3A6-C05B-4F36-8D7F-D295FA236C6B [view]

Lee, Yen-Ling; Glasby, Christopher J.

2015

Supplement 31: 75-95

Publication

https://lkcnhm.nus.edu.sg/app/uploads/2017/06/S31rbz075-095.pdf

World Polychaeta Database (WPolyD)

Available for editors   [request]

A new cryptic species of Neanthes (Nereididae), N. wilsonchani, new species, is described from intertidal mudflats of eastern Singapore. The new species was confused with both Ceratonereis (Composetia) burmensis (Monro, 1937) and Neanthes glandicincta Southern, 1921, which were found to be conspecific with the latter name having priority. Neanthes glandicincta is newly recorded from Singapore, its reproductive forms (epitokes) are redescribed, and Singapore specimens are compared with topotype material from India. The new species can be distinguished from N. glandicincta by slight body colour differences and by having fewer pharyngeal paragnaths in Areas II (4–8 vs 7–21), III (11–28 vs 30–63) and IV (1–9 vs 7–20), and in the total number of paragnaths for all Areas (16–41 vs 70–113). No significant differences were found in the morphology of the epitokes between the two species. The two species have largely non-overlapping distributions in Singapore; the new species is restricted to Pleistocene coastal alluvium in eastern Singapore, while N. glandicinta occurs in western Singapore as well as in Malaysia and westward to India.

Indian Ocean
Indo-Malay

Reproduction
Systematics, Taxonomy

Annelida
Polychaeta

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