Composetia marmorata
| Notice: | This page is derived from the original publication listed below, whose author(s) should always be credited. Further contributors may edit and improve the content of this page and, consequently, need to be credited as well (see page history). Any assessment of factual correctness requires a careful review of the original article as well as of subsequent contributions.
If you are uncertain whether your planned contribution is correct or not, we suggest that you use the associated discussion page instead of editing the page directly. This page should be cited as follows (rationale):
Citation formats to copy and paste
BibTeX: @article{Pamungkas2015ZooKeys, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Pamungkas2015ZooKeys">{{Citation See also the citation download page at the journal. |
Ordo: Phyllodocida
Familia: Nereididae
Genus: Composetia
Name
Composetia marmorata (Horst, 1924) comb. n. – Wikispecies link – Pensoft Profile
- Nereis (Ceratonereis) marmorata Horst, 1924: 177–178, pl. 34, figs 13–16.
Type locality
between Gisser and Seram-Laut, Maluku, Indonesia.
Material examined
3 males (RCLA.Ann.042), 1 female (RCLA.Ann.043), Suli, Ambon Island, Indonesia, 3°37'38.2"S, 128°18'25.0"E, coll. R. Alik, 18 March 2014; 3 males (RCLA.Ann.044), 2 females (RCLA.Ann.045), Suli, Ambon, Indonesia, 3°37'38.2"S, 128°18'25.0"E, coll. R. Alik, 19 March 2014; 1 male (RCLA.Ann.046), Mahia, Ambon Island, Indonesia, 3°44'42.6"S, 128°11'24.6"E, coll. A.S. Leatemia, 19 March 2014; 3 males (MZB.Pol.00161), 2 females (MZB.Pol.00162), Suli, Ambon Island, Indonesia, 3°37'38.2"S, 128°18'25.0"E, coll. R. Alik, 18 March 2014; 1 male (NTM W25889), 1 female (NTM W25888), Suli, Ambon Island, Indonesia, 3°37'38.2"S, 128°18'25.0"E, coll. R. Alik, 19 March 2014; 1 ex. (NTM W23811), Salawati, Raja Ampat, Indonesia coll. unknown, 18 August 1899 (donated to NTM, formerly ZMA VPol 0980).
Comparative material
Nereis (Ceratonereis) marmorata syntypes: 17 ex. (ZMA Vpol 0869) and 5 ex.(RMNH 1352), Siboga Stn. 172, Gisser anchorage, between this island and Seram- Laut, Maluku, Indonesia, 3°53'9.2"S, 130°51'56.2"E, coll. 26 August 1899. Composetia marmorata: 1 ex.(NTM W22530), 1 ex.(NTM W22615), 1 ex.(NTM W22797), Lizard Island, northern Great Barrier Reef, Australia, coll. CREEFS surveys 2008–2010.
Size range
Male: length (20–40 mm), maximum width (3.0–5.0 mm). Female: length (17–31 mm), maximum width (2.5–4.9 mm).
Diagnosis
Composetia species having distinctive marmorated stripes on the prostomium and anterior body (Fig. 3D). Paragnaths conical, arranged as follows: Areas I: 1–2; II: 7–14; III: 9–13; IV: 14–16; absent areas V-VIII. Male and female epitokes similar (Fig. 3C, D), except male has pygidial rosette (lacking in female) and natatory region dorsal cirri are sub-distally swollen (not scalloped) but unmodified in female; pre-natatory region comprising 17–18 chaetigers; basally swollen dorsal cirri on chaetigers 1 to 6 or 7; basally swollen ventral cirri on chaetigers 1 to 5; natatory region extends to pygidium. Female with eggs unpigmented.
Remarks
The distinctive marmorated (=veined) stripes on this species of Composetia facilitate identification. The markings are as described by Horst (1924[1]: 177) for Nereis (Ceratonereis) marmorata, and paragnath counts match well, although Horst reports considerable variation. Examination of paragnath numbers on the syntype material confirmed the identification. Hartmann-Schröder’s (1985)[2] tentative allocation of the species to Composetia is confirmed, and formalized here. Specimens from Lizard Island, northern Great Barrier Reef described by Glasby (2015)[3] are likely to be conspecific.
Distribution
Indonesia. Lizard Island, Australia.
Taxon Treatment
- Pamungkas, J; Glasby, C; 2015: Taxonomy of reproductive Nereididae (Annelida) in multispecies swarms at Ambon Island, Indonesia ZooKeys, (520): 1-25. doi
Images
|
Other References
- ↑ Horst R (1924) Polychaeta errantia of the Siboga-Expedition. Part III. Nereidae and Hesionidae. Siboga-Expedition, Leyden 99(Monograph 24): 145–198.
- ↑ Hartmann-Schröder G (1985) Revision der Gattung Ceratonereis Kinberg (Nereididae, Polychaeta) (mitbesonderer Berucksichtigung der Arten mit eingeschnittenem Prostomium). Mitteilungen aus dem Zoologischen Institut und Zoologische Museum der Universität Hamburg 82: 37–59.
- ↑ Glasby C (2015) Nereididae (Annelida: Phyllodocida) from Lizard Island, northern Great Barrier Reef, Australia. Zootaxa. [in press]
