Overview

Comprehensive Description

Populations of low density, on walls of black smokers. Necrophagous, feeding on mussels, dead shrimps and exuviae.
  • GUINOT D. (1989) Bull. Mus. Natl. Hist. Nat., Paris 11(1): 203-231.

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Distribution

Mid-Atlantic Ridge: TAG, Snake Pit, Logatchev, Rainbow, Lucky Strike and Menez Gwen.
  • GUINOT D. (1989) Bull. Mus. Natl. Hist. Nat., Paris 11(1): 203-231.

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Physical Description

Morphology

Carapace depressed, without transverse granular rows; dorsal surface finely granulate anteriorly and laterally. Suborbital plate absent, but presence of a distinct area located ventrolateral to orbit, more or less developed, sometimes depressed, with special texture, generally purplish [?oval tan colored spot? of WILLIAMS (1988)]. Eye-stalks mobile, well visible but short, cylindrical, without enlargement of cornea. Internal border of merus of Mxp3 straight, without a strong lobe. Chelipeds subequal, short; sexual dimorphism not very pronounced; propodus glabrous in the male, with a pubescence along the inferior border in female. Walking legs rather long, each with dense patches of short setae on extensor surface of carpus and propodus and, more extensively, on dactyl. G2 long, with flagellum twisted in a tight spiral.
  • GUINOT D. (1989) Bull. Mus. Natl. Hist. Nat., Paris 11(1): 203-231.

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Size

Male 22 x 39 mm, female 21 x 35 mm.
  • GUINOT D. (1989) Bull. Mus. Natl. Hist. Nat., Paris 11(1): 203-231.

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Type Information

Holotype for Bythograea mesatlantica Williams, 1988
Catalog Number: USNM 234300
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Sex/Stage: female;
Preparation: Alcohol (Ethanol)
Year Collected: 1986
Locality: Mid-Atlantic Rift Valley, 70 Km S Of Kane Fracture Zone, North Atlantic Ocean
Depth (m): 3437 to 3437
Vessel: Alvin DSR/V
  • Holotype:
Creative Commons Attribution 3.0 (CC BY 3.0)

© Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology

Source: National Museum of Natural History Collections

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Ecology

Habitat

Depth range based on 44 specimens in 1 taxon.
Water temperature and chemistry ranges based on 44 samples.

Environmental ranges
  Depth range (m): 833 - 3650
  Temperature range (°C): 2.523 - 9.211
  Nitrate (umol/L): 17.840 - 22.153
  Salinity (PPS): 34.913 - 35.419
  Oxygen (ml/l): 4.413 - 6.060
  Phosphate (umol/l): 1.114 - 1.496
  Silicate (umol/l): 10.356 - 42.727

Graphical representation

Depth range (m): 833 - 3650

Temperature range (°C): 2.523 - 9.211

Nitrate (umol/L): 17.840 - 22.153

Salinity (PPS): 34.913 - 35.419

Oxygen (ml/l): 4.413 - 6.060

Phosphate (umol/l): 1.114 - 1.496

Silicate (umol/l): 10.356 - 42.727
 
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

Barcode data: Segonzacia mesatlantica

The following is a representative barcode sequence, the centroid of all available sequences for this species.


No available public DNA sequences.

Download FASTA File
Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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Statistics of barcoding coverage: Segonzacia mesatlantica

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 1
Species With Barcodes: 1
Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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