Composetia marmorata (Horst, 1924)

Dataset
GBIF Backbone Taxonomy: Rank
SPECIES: Published in
Pamungkas, Joko; Glasby, Christopher J. Taxonomy of reproductive Nereididae (Annelida) in multispecies swarms at Ambon Island, Indonesia. ZooKeys. 520: 1-25 (2015).

Classification

kingdom
Animalia: phylum
Annelida: class
Polychaeta: order
Phyllodocida: family
Nereididae: genus
Composetia: species
Composetia marmorata

diagnosis

Diagnosis. Composetia species having distinctive marmorated-stripes on antero-dorsal body and prostomium (Fig. 1 G); paragnaths conical, arranged as follows (n = 1): Areas I: 1; II: 8 – 9 in cluster of two curved rows; III: 3; IV: 10 – 12 in triangular cluster (Figs 1 H, 2 A).

discussion

Remarks. The markings are as described by Horst (1924: 177) for Nereis (Ceratonereis) marmorata; pigmentation fades in preserved specimens (Figs 1 H, 2 A). Examination of paragnath numbers in the syntypes confirmed the identification; the number in Area III appears to be highly variable, from 3 reported here to 4 – 18 in the syntype material as decribed by Horst (1924). This species was not collected in the August 2013 survey. Habitat. Lagoon to reef slope, 3 – 30 m.

distribution

Distribution. Indonesia. First record for Lizard Island and Australia.

materials_examined

Material examined. NTM: W 22530 - T (1), Big Vicky Reef, NW of Palfrey Island, 14 ° ' S 145 ° ' E, coll. K. Mills, 12 Apr 2008; W 22615 - T (1), Day Reef, 14 ° 28.27 ' S 145 ° 37.78 ' E, coll. M. Blazewicz-Paskowycz, 13 Feb 2009; W 22797 - T (1), Macs Reef, 14 ° 39.49 ' S 145 ° 29.48 ' E, coll. K. Mills & S. Smith, 25 Feb 2009. Comparative material examined. NTM: W 23811 (1), Salawati, Raja Ampat, Indonesia. Nereis (Ceratonereis) marmorata ZMA VPol 0 869 (17 syntypes) and RMNH 1352 (5 syntypes), R / V Siboga Stn 172, Gisser anchorage, between this island and Seram-Laut, Maluku, Indonesia, 3 ° 53.1534 ’ S 130 ° 51.934 ’ E, coll. 26 Aug 1899.

materials_examined

Type locality. Between Gisser and Seram-Laut, Maluku, Indonesia.

diagnosis

Diagnosis. Composetia species having distinctive marmorated stripes on the prostomium and anterior body (Fig. 3 D). 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. 3 C, 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.

materials_examined

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 W 22530), 1 ex. (NTM W 22615), 1 ex. (NTM W 22797), Lizard Island, northern Great Barrier Reef, Australia, coll. CREEFS surveys 2008 - 2010.

materials_examined

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 W 25889), 1 female (NTM W 25888), Suli, Ambon Island, Indonesia, 3 ° 37 ' 38.2 " S, 128 ° 18 ' 25.0 " E, coll. R. Alik, 19 March 2014; 1 ex. (NTM W 23811), Salawati, Raja Ampat, Indonesia coll. unknown, 18 August 1899 (donated to NTM, formerly ZMA VPol 0980).

Name

Synonyms: Ceratonereis marmorata (Horst, 1924); Nereis marmorata Horst, 1924
Homonyms: Composetia marmorata (Horst, 1924)

Bibliographic References

Pamungkas, Joko; Glasby, Christopher J. (2015). Taxonomy of reproductive Nereididae (Annelida) in multispecies swarms at Ambon Island, Indonesia. <em>ZooKeys.</em> 520: 1-25. 10.3897/zookeys.520.9581