Physical Description

Diagnostic Description

Diagnosis

(from Oudemans, 1885)

Body usually slender, often thickened and rounded anteriorly, flattened in intestinal region; head usually wider than parts immediately following; mouth situated immediately behind the brain; proboscis pore subterminal. Lateral slits, cephalic grooves, and cerebral sensory organs lacking. Intestine with paired, lateral diverticula.

Body musculature composed of two muscular layers throughout length of body, and of localized supplementary layers. These consist of a thick internal longitudinal layer and a thin external circular layer, but in the esophageal region a second circular layer lies internal to the longitudinal muscles, and just in front of the nephridial region becomes enormously thickened. In the anterior portions of the esophageal region a double set of distinct diagonal muscles lies just internal to the outer circular muscular layer.



The lateral nerves are situated within the longitudinal muscular layer.

In the anterior portion of the esophageal region are three pairs of longitudinal blood vessels, of which one pair represents the main lateral vessels and lies beside the esophagus, a second pair lies beside the proboscis sheath, and the third pair is situated internal to the ventral wall of the proboscis sheath and projects freely into the rhynchocoel.

(from Coe, W. R. (1901). Papers from the Harriman Alaska Expedition. XX. The nemerteans.. Proc. Wash. Acad. Sci.. 1-110.)

Body musculature consists of a thin outer circular layer, a diagonal layer, a longitudinal layer, and, in the esophageal region, an additional, enormously developed inner circular layer. Head broader than neck. Nephridia well developed.

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Source: Nemertea

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Ecology

Habitat

Depth range based on 188 specimens in 5 taxa.
Water temperature and chemistry ranges based on 17 samples.

Environmental ranges
  Depth range (m): 0 - 484
  Temperature range (°C): 8.315 - 12.473
  Nitrate (umol/L): 2.761 - 30.530
  Salinity (PPS): 31.538 - 34.104
  Oxygen (ml/l): 2.000 - 6.346
  Phosphate (umol/l): 0.522 - 2.333
  Silicate (umol/l): 2.387 - 41.655

Graphical representation

Depth range (m): 0 - 484

Temperature range (°C): 8.315 - 12.473

Nitrate (umol/L): 2.761 - 30.530

Salinity (PPS): 31.538 - 34.104

Oxygen (ml/l): 2.000 - 6.346

Phosphate (umol/l): 0.522 - 2.333

Silicate (umol/l): 2.387 - 41.655
 
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:8Public Records:3
Specimens with Sequences:5Public Species:2
Specimens with Barcodes:5Public BINs:3
Species:2         
Species With Barcodes:2         
          
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Source: Barcode of Life Data Systems (BOLD)

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Locations of barcode samples

Collection Sites: world map showing specimen collection locations for Carinoma

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Source: Barcode of Life Data Systems (BOLD)

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Barcode data

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Source: Barcode of Life Data Systems (BOLD)

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