Remarks: Likely two different species of Spiochaetopterus are present at Mid-Atlantic Ridge vent fields. The poor conservation state of the collections does not allow a specific identification; however, the shape of the specialized chaetae is unique.

Color: Dark tan in alcohol with ventral white glandular shield extending from segment 5-8.

All chaetopterids have highly modified body regions that enable them to strain water through mucous bags. All chaetopterids secrete the tube from glands located on the ventral side of the anterior body region.

Mid-Atlantic Ridge: TAG and Rainbow.

Body long, slender, soft; tubes ringed, horny. Prostomium small, and enfolded by the truncate buccal segment which bears long grooved palps but no tentacular cirri. Fourth chaetiger with a fan of lanceolate chaetae, a large and long spine with a truncated top, slightly cordate and a small aristate spine. Middle region (very damaged) with numerous segments (>15), with two rami, all similar with a bilobed Y-shaped inner part and a small unilobed foliaceous outer part. The neuropodia are unilobed on B1 and bilobed on following segments. The notopodia of the posterior region are erected, slightly inflated posteriorly.

Unknown, only fragmented specimens.

Depth range based on 1753 specimens in 10 taxa.
Water temperature and chemistry ranges based on 417 samples.

Environmental ranges
  Depth range (m): -99 - 5460
  Temperature range (°C): -1.460 - 27.678
  Nitrate (umol/L): 0.174 - 41.944
  Salinity (PPS): 31.893 - 40.598
  Oxygen (ml/l): 0.710 - 8.421
  Phosphate (umol/l): 0.038 - 2.900
  Silicate (umol/l): 0.756 - 162.179

Graphical representation

Depth range (m): -99 - 5460

Temperature range (°C): -1.460 - 27.678

Nitrate (umol/L): 0.174 - 41.944

Salinity (PPS): 31.893 - 40.598

Oxygen (ml/l): 0.710 - 8.421

Phosphate (umol/l): 0.038 - 2.900

Silicate (umol/l): 0.756 - 162.179
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

Barcode of Life Data Systems (BOLD) Stats
                                        

Specimen Records:	4	Public Records:	0
Specimens with Sequences:	0	Public Species:	0
Specimens with Barcodes:	0	Public BINs:	0
Species:	2
Species With Barcodes:	0

Collection Sites: world map showing specimen collection locations for Spiochaetopterus