Glycera tridactyla Schmarda, 1861

Böggemann, Markus, 2015, Glyceriformia Fauchald, 1977 (Annelida: “ Polychaeta ”) from Lizard Island, Great Barrier Reef, Australia, Zootaxa 4019 (1) : -

publication ID

https://doi.org/ 10.11646/zootaxa.4019.1.7

publication LSID

lsid:zoobank.org:pub:7E7B2CC8-91FB-4724-A4E2-ED74307CDCD5

DOI

https://doi.org/10.5281/zenodo.6105664

persistent identifier

https://treatment.plazi.org/id/03A38912-FFEB-FFF6-FF27-FC2E551BC5B8

treatment provided by

Plazi

scientific name

Glycera tridactyla Schmarda, 1861
status

 

Glycera tridactyla Schmarda, 1861 View in CoL

( Figs 7 View FIGURE 7 , 10 View FIGURE 10 F)

Glycera tridactyla Schmarda, 1861: 97 View in CoL ; pl. 30, fig. 238; textfigs a–b, k. Synonyms see Böggemann 2002

Material examined. AM W.47198, MI QLD 2376 (3), cs/32/113/2.1/1.4, cs/25/121/2.4/1.6. cs/25/116/1.9/1.2; AM W.47199, MI QLD 2422 (12), cs/31.5/122/2.3/1.4, cs/29/117/2.2/1.6, cs/27.5/117/2.2/1.5, cs/22.5/121/1.9/1.3, af/23/ 105/2.2/1.7, af/15/60/2.3/1.7, af/13/51/1.8/1.2, af/11/50/2.0/1.2, mf/4/14/1.9/0.9, pf/15/50/1.7/0.9, pf/10.5/60/2.0/ 1.1, pf/10/36/1.3/0.7; AM W.47202, MI QLD 2429 (7), cs/27/120/2.0/1.3, cs/26/112/1.9/1.2, cs/21/113/2.0/1.4, cs/ 20/111/2.0/1.5, cs/20/108/1.7/1.0, af/25/112/2.0/1.3, af/17/82/1.9/1.2; AM W.44815, MI QLD 2429, af/10.5/48/2.0/ 1.3; AM W.44847, MI QLD 2422, cs/22/118/1.8/1.1; AM W.45847, MI QLD 2422 (6), cs/34/118/2.0/1.3, cs/25.5/ 102/1.5/1.0, cs/24/114/1.9/1.2, cs/23/106/1.3/0.9, af/17/70/1.7/1.2, af/16.5/77/1.6/1.1; AM W.47222, MI QLD 2422 (2), af/20.5/71/1.8/1.1, af/17/71/1.9/1.2; AM W.45848, MI QLD 2429 (few), cs/25.5/120/2.0/1.3, cs/23/117/2.0/1.5, cs/18/93/1.9/1.1; AM W.28585, Lizard Island, 100 m off eastern end of Mangrove Beach, medium sand, 3 m, small hand-held corer from SCUBA, 30 Sep 1978, cs/36/119/2.0/1.4; AM W. 46215, 100 m off eastern end of Mangrove Beach, undulating sand, filamentous algae, 3 m, 11 Sep 1978, cs/31/114/1.8/1.0; AM W. 46216, 100 m off eastern end of Mangrove Beach, undulating sand, filamentous algae, 3 m, 11 Sep 1978, cs/37/125/3.0/2.3, part of proboscis on SEM stub; AM W. 46217, 100 m off eastern end of Mangrove Beach, undulating sand, filamentous algae, 3 m, 11 Sep 1978, cs/35/113/2.2/1.5; AM W.28587, Lizard Island Group, lagoon entrance between Bird Islet and Trawler Beach, fine sand bottom with many mounds & hollows, 15.2 m, 5 Oct 1978, af/9/ca.34/ca.2.2/ca.1.4, mf/10/26/2.7/ 1.8, pf/19/50/2.1/1.6; AM W.46210 (several), Lizard Island Group, halfway between Mangrove Beach and South Island, fine sediment, 10 m, small hand-held corer from SCUBA, 30 Sep 1978, cs/26/101/1.7/1.1, af/29/92/1.8/1.2, af/10/38/1.5/1.0; AM W.47223, same, af/24/84/2.2/1.7, part of proboscis on SEM stub; AM W.47209, Lizard Island Group, Blue Lagoon, 3 m, 24 Jul 1979, cs/7/62/1.0/0.7; AM W.46212 (several), Lizard Island Group, 250 m eastsouth-east of Palfrey Island, south end of lagoon, very fine sticky sediment, 12 m, human dredge by hand from SCUBA, 12 Oct 1978, cs/45/121/2.4/1.5, cs/24/108/1.6/1.0, af/26/99/2.0/1.4, af/11/43/1.9/1.3.

Diagnosis. Proboscidial papillae mainly with terminal fingernail structure with short stalk and same longitudinal ridges on nail; ailerons with triangular bases; parapodia of mid-body with slender triangular notopodial and shorter, more or less rounded neuropodial postchaetal lobes; simple, digitiform branchiae, situated termino-dorsally on parapodia, from anterior to near posterior end.

Description. Body up to 45 mm long with up to 125 chaetigers. Mid-body segments bi-annulate.

Conical prostomium consisting of about 13–15 rings; terminal ring with four appendages and basal one with pair of nuchal organs ( Fig. 7 View FIGURE 7 A).

Proboscis with three types of papillae: 1. numerous papillae with terminal fingernail structure on posterior surface, with short stalk and some longitudinal ridges on nail; 2. less numerous and slightly shorter conical papillae; 3. isolated, broader, oval to globular papillae without ridges ( Figs 7 View FIGURE 7 B, 10F). Terminal part of proboscis with four hook-shaped jaws arranged in a cross and accessory ailerons with triangular base ( Fig. 7 View FIGURE 7 C).

First two pairs of parapodia uniramous; following parapodia biramous ( Fig. 7 View FIGURE 7 D–K). Two slender triangular to digitiform prechaetal lobes of about same length; both lobes becoming slightly thinner in posterior parapodia; in last parapodia notopodial lobe shorter than neuropodial one. Two shorter postchaetal lobes; anteriorly both lobes rounded; in following parapodia notopodial lobe elongated and slender triangular, distinctly longer than rounded, at first sometimes also slightly blunt triangular neuropodial lobe; notopodial lobe in posterior parapodia slender and elongated; in last parapodia notopodial lobe generally shorter. Dorsal cirri from 3rd parapodium, conical to oval; inserted on body wall slightly above parapodial base. Ventral cirri slender triangular to digitiform, about as long as neuropodial postchaetal lobe; in posterior parapodia slender and elongated; in last parapodia about as long as neuropodial prechaetal lobe; situated medio-ventrally on parapodia. Branchiae non-retractile, simple, digitiform ( Fig. 7 View FIGURE 7 F–J); starting from about 21th to 32nd parapodium to near posterior end; situated termino-dorsally on parapodia; best developed in mid-body region, extending beyond prechaetal lobes.

Noto- and neuropodia each with a single acicula ( Fig. 7 View FIGURE 7 D–K). Notochaetae capillaries. Neurochaetae compound spinigers with blades of different lengths.

Pygidium with dorsal anus and terminal pair of slender, elongated cirri.

Remarks. A few specimens with ectoparasitic nematodes on the body and on the parapodia (AM W.47199, AM W.47202).

Distribution. Lizard Island Group; intertidal to 15.2 m.

Kingdom

Animalia

Phylum

Annelida

Class

Polychaeta

Order

Phyllodocida

SubOrder

Glyceriformia

Family

Glyceridae

Genus

Glycera

Loc

Glycera tridactyla Schmarda, 1861

Böggemann, Markus 2015
2015
Loc

Glycera tridactyla

Schmarda 1861: 97
1861
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