Overview

Distribution

Observations

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Supplier: Jeff Holmes

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Physical Description

Type Information

Holotype for Hexabranchus tinkeri Ostergaard, 1955
Catalog Number: USNM 574926
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Preparation: Alcohol (Ethanol)
Collector(s): R. Hope
Year Collected: 1922
Locality: Oahu, Waikiki, off Marine Biological Lab, Hawaii, United States, North Pacific Ocean
  • Holotype: Pac. Sci. 9: 128, fig. 14, pl. 2.
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© Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology

Source: National Museum of Natural History Collections

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Holotype for Hexabranchus aureomarginatus Ostergaard, 1955
Catalog Number: USNM 574927
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Preparation: Alcohol (Ethanol)
Collector(s): R. Hope
Year Collected: 1922
Locality: Oahu, Waikiki, off Marine Biological Lab, Hawaii, United States, North Pacific Ocean
  • Holotype: Pac. Sci. 9: 132, fig. 15, pl. 2.
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 12 specimens in 1 taxon.
Water temperature and chemistry ranges based on 7 samples.

Environmental ranges
  Depth range (m): 0 - 17
  Temperature range (°C): 25.491 - 28.496
  Nitrate (umol/L): 0.079 - 0.232
  Salinity (PPS): 34.440 - 35.070
  Oxygen (ml/l): 4.509 - 4.696
  Phosphate (umol/l): 0.088 - 0.172
  Silicate (umol/l): 1.089 - 3.928

Graphical representation

Depth range (m): 0 - 17

Temperature range (°C): 25.491 - 28.496

Nitrate (umol/L): 0.079 - 0.232

Salinity (PPS): 34.440 - 35.070

Oxygen (ml/l): 4.509 - 4.696

Phosphate (umol/l): 0.088 - 0.172

Silicate (umol/l): 1.089 - 3.928
 
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: Hexabranchus sanguineus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 1
Species With Barcodes: 1
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© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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Genomic DNA is available from 3 specimens with morphological vouchers housed at Florida Museum of Natural History
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© Ocean Genome Legacy

Source: Ocean Genome Resource

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Wikipedia

Spanish dancer

The Spanish dancer, scientific name Hexabranchus sanguineus (literally meaning "blood-colored six-gills"), is a dorid nudibranch, a very large and colorful sea slug, a marine gastropod mollusk in the family Hexabranchidae.[3]

Description[edit]

A Spanish dancer swimming, its anterior end on the right

This species of very large, strong-swimming nudibranch is one of the largest of all nudibranchs: specimens of well over 40 cm in length have been reported.[3]

The species name, sanguineus, refers to its bright red coloration, but a yellow variant also exists.

This nudibranch has two very different modes of locomotion: crawling and swimming. When it crawls, the wide edges of the mantle (the parapodia) are rolled up close to the body. When the animal swims however, the red parapodia unfurl, and are whirled through the water in a spectacular undulating motion, propelling the animal forwards.

The animal was given the common name "Spanish dancer" because the whirling swimming movement, and the red color of the mantle, are reminiscent of the skirt movements of a flamenco dancer.

The Emperor shrimp, Periclimenes imperator, is a commensal that is commonly found living on Hexabranchus sanguineus.

Distribution[edit]

This species is found throughout the tropical Indo-Pacific Ocean and the Red Sea.[3]

References[edit]

  1. ^ Rudman, W.B., 1999 (March 31) Hexabranchus sanguineus (Ruppell & Leuckart, 1828). [In] Sea Slug Forum. Australian Museum, Sydney.
  2. ^ Valdés Á. (2002). "How many species of Hexabranchus (Opisthobranchia : Dorididae) are there?". Molluscan Research 22(3): 289-301. doi:10.1071/MR02012, PDF.
  3. ^ a b c http://www.seaslugforum.net/hexasang.htm Seaslug forum
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Source: Wikipedia

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