Dahlella
| Dahlella | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Leptostraca |
| Family: | Nebaliidae |
| Genus: | Dahlella Hessler, 1984 [1] |
| Species: | D. caldariensis |
| Binomial name | |
| Dahlella caldariensis Hessler, 1984 [1] | |
Dahlella is a genus of leptostracan crustacean which lives on hydrothermal vents in the Pacific Ocean. The only species is Dahlella caldariensis.[2]
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.[3] 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.[4] A similar character is found in Paranebalia (Paranebaliidae), but the form of the eyestalk is very different in the two taxa.[4]
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.[5] It is one of the deepest-living species of Leptostraca, having been found at depths of over 2,300 m (7,500 ft).[6]
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.[7]
References
- ^ a b 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.
- ^ "Dahlella Hessler, 1984". WoRMS. World Register of Marine Species. 2024. Retrieved 10 December 2024.
- ^ "Dahlella caldariensis". Grzimek's Animal Life Encyclopedia. 2003.
- ^ a b 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.
- ^ Todd Haney. "Leptostraca Specimen Database Search". Natural History Museum of Los Angeles County. Archived from the original on 2008-10-10.
- ^ 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.
- ^ Todd Haney. "Synonymy". Los Angeles PEET project on Leptostraca. Natural History Museum of Los Angeles County. Archived from the original on 2008-09-06.