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Dahlella

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Genus of crustaceans

Dahlella
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Leptostraca
Family: Nebaliidae
Genus: Dahlella
Hessler, 1984 
Species: D. caldariensis
Binomial name
Dahlella caldariensis
Hessler, 1984 

Dahlella is a genus of leptostracan crustacean which lives on hydrothermal vents in the Pacific Ocean. The only species is Dahlella caldariensis.

Description

Dahlella may reach a length of 8.1 mm (0.32 in) from the base of the rostrum to the end of the abdomen. Much of the animal is covered by a large, hinged carapace. Dahlella can be distinguished from other animals in the same family by the presence of a row of denticles (small teeth) on the eyestalks, which it is believed are used to scrape surfaces for food. A similar character is found in Paranebalia (Paranebaliidae), but the form of the eyestalk is very different in the two taxa.

Distribution

Dahlella caldariensis has been recorded from a small number of sites around hydrothermal vents in the eastern Pacific Ocean near the Galápagos Islands and on the East Pacific Rise. It is one of the deepest-living species of Leptostraca, having been found at depths of over 2,300 m (7,500 ft).

Etymology

The generic name Dahlella commemorates the biologist Erik Dahl of the University of Lund. The specific epithet comes from the Latin word caldaria meaning hot bath, and is a reference to the natural habitat of D. caldariensis.

References

  1. ^ R. R. Hessler (1984). "Dahlella caldariensis new genus new species - a leptostracan (Crustacea, Malacostraca) from deep-sea hydrothermal vents". Journal of Crustacean Biology. 4 (4): 655–664. doi:10.2307/1548079. JSTOR 1548079.
  2. "Dahlella Hessler, 1984". WoRMS. World Register of Marine Species. 2024. Retrieved 10 December 2024.
  3. "Dahlella caldariensis". Grzimek's Animal Life Encyclopedia. 2003.
  4. ^ Genefor K. Walker-Smith & Gary C. B. Poore (2001). "A phylogeny of the Leptostraca (Crustacea) with keys to families and genera" (PDF). Memoirs of Museum Victoria. 58 (2): 383–410. doi:10.24199/j.mmv.2001.58.21. Archived from the original (PDF) on 2017-08-09. Retrieved 2009-02-27.
  5. Todd Haney. "Leptostraca Specimen Database Search". Natural History Museum of Los Angeles County. Archived from the original on 2008-10-10.
  6. Todd A. Haney, Robert R. Hessler & Joel W. Martin (2001). "Nebalia schizophthalma, a new species of leptostracan (Malacostraca) from deep waters off the east coast of the United States" (PDF). Journal of Crustacean Biology. 21 (1): 192–201. doi:10.1651/0278-0372(2001)021[0192:NSANSO]2.0.CO;2. JSTOR 1549768. Archived from the original (PDF) on 2011-07-27. Retrieved 2009-02-27.
  7. Todd Haney. "Synonymy". Los Angeles PEET project on Leptostraca. Natural History Museum of Los Angeles County. Archived from the original on 2008-09-06.
Taxon identifiers
Dahlella
Dahlella caldariensis
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