Overview

Comprehensive Description

Description

Prostomium blunt, anteriorly truncate or rounded, anterior margin with entire anterior margin. Lateral horns absent. Caruncle present. Occipital antenna absent. Nuchal organ short, at most one segment long. Eyes present, or absent; 0–4 eyes. Palps simple, lacking basal sheath. Dorsal ridge connecting bases of branchiae on chaetiger 1 absent. Prominent dorsal collar on setiger 2 absent. Dorsal branchiae present, first present on chaetiger 3. Dorsal branchiae absent from many median and posterior chaetigers, last present on chaetiger 4. Dorsal branchiae continuous. Dorsal branchiae partially or wholly fused with notopodial lamellae (on some or all chaetigers), all simple. First branchiae without process at base on anterior face. Accessory branchiae arising from posterior part of notopodium absent. Ventral branchiae absent. Chaetiger 3 without filament at base of branchiae. Dorsal crests absent. Ventral crests absent. Chaetiger 1 notopodium present. Chaetiger 1 notochaetae present. Neuropodial lobe of chaetiger 2 rounded, approximately symmetrical. Neuropodial lobes of posterior chaetigers a single lobe. Interparapodial pouches absent. Chaetigers 2–4 similar, not strongly differentiated. Chaetiger 5 unmodified, similar to subsequent chaetigers. Posterior modified notochaetae absent. Notopodial hooded hooks present. Neurochaetae of chaetiger 1 simple capillaries similar to those of subsequent chaetigers. Neuropodial hooded hooks present. Neuropodial hooded hooks with accessory tooth or teeth above the main fang, multiple accessory teeth (more than 3), secondary tooth closely applied to the main fang, about 45º. Shaft of neuropodial hooded hooks of constant thickness, lacking a constriction. Neuropodial sabre chaetae present, in ventral-most positions. Neuropodial spines absent. Embedded bunches of notopodial needle chaetae absent. Pygidium with 1 long medial cirrus and 2 short lateral cirri.

Description generated from: Wilson, RS & McDiarmid, H 2013. Spionidae (Polychaeta)- A DELTA database of genera, and Australian species. Version 2; originally published as In RS Wilson, PA Hutchings & CJ Glasby (eds) Polychaetes: An Interactive Identification Guide. CSIRO Publishing, Melbourne.

Additional references:
Maciolek, NJ. 1981. A new genus and species of Spionidae (Annelida: Polychaeta) from the north and south Atlantic. Proceedings of the Biological Society of Washington 94, 228-239.

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Distribution

Distribution within Australia: South-eastern Australia.

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Ecology

Habitat

Insufficient data.

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Depth range based on 512 specimens in 2 taxa.
Water temperature and chemistry ranges based on 447 samples.

Environmental ranges
  Depth range (m): 132 - 3347
  Temperature range (°C): 2.766 - 11.680
  Nitrate (umol/L): 10.029 - 31.717
  Salinity (PPS): 34.735 - 35.701
  Oxygen (ml/l): 2.742 - 6.322
  Phosphate (umol/l): 0.763 - 2.073
  Silicate (umol/l): 4.627 - 52.358

Graphical representation

Depth range (m): 132 - 3347

Temperature range (°C): 2.766 - 11.680

Nitrate (umol/L): 10.029 - 31.717

Salinity (PPS): 34.735 - 35.701

Oxygen (ml/l): 2.742 - 6.322

Phosphate (umol/l): 0.763 - 2.073

Silicate (umol/l): 4.627 - 52.358
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
Specimen Records: 50
Specimens with Sequences: 49
Specimens with Barcodes: 49
Species: 1
Species With Barcodes: 1
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Source: Barcode of Life Data Systems (BOLD)

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