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词条 Leptostraca
释义

  1. Description

  2. Classification

  3. References

  4. External links

{{Taxobox
| image = Nebalia bipes.jpg
| image_caption = Nebalia bipes
| fossil_range = {{Fossil range|Cambrian|Recent}}
| regnum = Animalia
| phylum = Arthropoda
| subphylum = Crustacea
| classis = Malacostraca
| subclassis = Phyllocarida
| ordo = Leptostraca
| ordo_authority = Claus, 1880 [1]
| subdivision_ranks = Families [2]
| subdivision =
  • Nebaliidae
  • Nebaliopsididae
  • Paranebaliidae
  • † Rhabdouraeidae

}}Leptostraca (from the Greek words for thin and shell)[2] is an order of small, marine crustaceans. Its members, including the well-studied Nebalia, occur throughout the world's oceans and are usually considered to be filter-feeders.[3] It is the only extant order in the subclass Phyllocarida. They are believed to represent the most primitive members of their class, the Malacostraca, and first appear in the fossil record during the Cambrian period.[5]

Description

Leptostracans are usually small, typically {{convert|5|to|15|mm|1}} long,[4] crustaceans distinguished from all other members of their class in having seven abdominal segments, instead of six. Their head has stalked compound eyes, two pairs of antennae (one biramous, one uniramous), and a pair of mandibles but no maxillipeds.[3] The carapace is large and comprises two valves which cover the head and the thorax, including most of the thoracic appendages, and serves as a brood pouch for the developing embryos. The first six abdominal segments bear pleopods, while the seventh bears a pair of caudal furcae, which may be homologous to uropods of other crustaceans.[5]

Leptostracans have gills on their thoracic limbs, but also breathe through a respiratory membrane on the inside of the carapace. The eggs hatch as a postlarval, or "manca" stage, which lacks a fully developed carapace, but otherwise resembles the adult.[6]

Classification

It is now accepted that leptostracans belong to the Malacostraca,[7] and the sister crown group to Leptostraca is Eumalacostraca.[8]

The Order Leptostraca is divided into three families, with ten genera containing a total of around 40 validly described extant species:[9]

Species Authority Date Family Distribution
Nebaliopsis typica Sars 1887 Nebaliopsididae Southern Hemisphere [10]
Pseudonebaliopsis atlantica Petryachov 1996 Nebaliopsididae North Atlantic [11]
Nebalia antarctica Dahl 1990 Nebaliidae Antarctica [10]
Nebalia bipes Fabricius 1780 Nebaliidae Arctic and sub-Arctic [10]
Nebalia borealis Dahl 1985 Nebaliidae north-east Atlantic Ocean [10]
Nebalia brucei Olesen 1999 Nebaliidae Tanzania [10]
Nebalia cannoni Dahl 1990 Nebaliidae South Georgia [10]
Nebalia capensis Barnard 1914 Nebaliidae South Africa [10]
Nebalia clausi Dahl 1985 Nebaliidae Italy [10]
Nebalia dahli Kazmi & Tirmizi 1989 Nebaliidae Pakistan [10]
Nebalia daytoni Vetter 1996 Nebaliidae California [10]
Nebalia falklandensis Dahl 1990 Nebaliidae Falkland Islands
Nebalia geoffroyi Milne-Edwards 1828 Nebaliidae north-east Atlantic Ocean [12]
Nebalia gerkenae Haney & Martin 2000 Nebaliidae California [10]
Nebalia herbstii Leach 1814 Nebaliidae north-east Atlantic Ocean [10]
Nebalia hessleri Martin et al. 1996 Nebaliidae California [10]
Nebalia ilheoensis Kensley 1976 Nebaliidae south-western Africa [10]
Nebalia kensleyi Haney & Martin 2005 Nebaliidae California [13]
Nebalia kocatasi Kocak, Moreira & Katagan 2007 Nebaliidae Mediterranean Sea [14]
Nebalia koreana Song, Moreira & Min 2012 Nebaliidae South Korea [15]
Nebalia lagartensis Escobar & Villalobos-Hiriart 1995 Nebaliidae Mexico [10]
Nebalia longicornis Thomson 1879 Nebaliidae South Pacific, South Africa, Caribbean Sea [10]
Nebalia marerubi Wägele 1983 Nebaliidae Red Sea [10]
Nebalia patagonica Dahl 1990 Nebaliidae Magellan region [10]
Nebalia schizophthalma Haney, Hessler & Martin 2001 Nebaliidae western Atlantic Ocean [16]
Nebalia strausi Risso 1826 Nebaliidae north-east Atlantic Ocean, Mediterranean Sea [10]
Nebalia troncosoi Moreira, Cacabelos & Dominguez 2003 Nebaliidae Spain [17]
Nebaliella antarctica Thiele 1904 Nebaliidae Kerguelen, New Zealand [10]
Nebaliella brevicarinata Kikuchi & Gamô 1992 Nebaliidae Antarctica [10]
Nebaliella caboti Clark 1932 Nebaliidae Cabot Strait, New Jersey [10]
Nebaliella declivatas Walker-Smith 1998 Nebaliidae Australia [10]
Nebaliella extrema Thiele 1905 Nebaliidae Antarctica [10]
Dahlella caldariensis Hessler 1984 Nebaliidae East Pacific Rise [10]
Sarsinebalia cristobi Moreira, Gestoso & Troncoso 2003 Nebaliidae north-east Atlantic Ocean [18]
Sarsinebalia typhlops {{sort>Sars|(Sars)}} 1870 Nebaliidae North Atlantic, Australia [10]
Sarsinebalia urgorrii Moreira, Gestoso & Troncoso 2003 Nebaliidae north-east Atlantic Ocean [18]
Speonebalia cannoni Bowman, Yager & Iliffe 1985 Nebaliidae Turks and Caicos Islands [10]
Levinebalia fortunata {{sort>Wakabara|(Wakabara)}} 1976 Paranebaliidae New Zealand [10]
Levinebalia maria Walker-Smith 2000 Paranebaliidae Australia [10]
Paranebalia belizensis Modlin 1991 Paranebaliidae Belize [10]
Paranebalia longipes {{sort>Willemöes-Suhm|(Willemöes-Suhm)}} 1875 Paranebaliidae Atlantic, Pacific and Indian Oceans [10]
Saronebalia guanensis Haney & Martin 2004 Paranebaliidae British Virgin Islands [19]

References

1. ^{{ITIS |id=331680 |taxon=Leptostraca |accessdate=October 28, 2010}}
2. ^{{cite web |url=http://cancerweb.ncl.ac.uk/cgi-bin/omd?leptostraca |title=Leptostraca |publisher=Online Medical Dictionary |date=March 1, 1998}}
3. ^1 {{Cite web |url=http://www.crustacea.net/crustace/www/leptostr.htm |author=J. K. Lowry |title=Leptostraca |work=Crustacea, the Higher Taxa: Description, Identification, and Information Retrieval |date=October 2, 1999 |publisher=Australian Museum}}
4. ^{{cite web |url=http://www.answers.com/topic/phyllocarida-leptostracans-biological-family |author=Estela C. Lopretto |publisher=Answers.com |date=July 30, 2003 |title=Phyllocarida}}
5. ^{{cite journal |url=http://www.tiho-hannover.de/einricht/botanik/koenemann/knopfetal06.pdf |title=The urosome of the Pan- and Peracarida |author=F. Knopf, S. Koenemann, F. R. Schram & C. Wolff |year=2006 |journal=Contributions to Zoology |volume=75 |issue=1/2 |pages=1–21}}
6. ^1 {{cite book |author=Robert D. Barnes |year=1982 |title= Invertebrate Zoology |publisher=Holt-Saunders International |location=Philadelphia, PA |pages= 708–709|isbn= 978-0-03-056747-6}}
7. ^{{cite book |url=http://atiniui.nhm.org/pdfs/3839/3839.pdf |title=An Updated Classification of the Recent Crustacea |author1=J. W. Martin |author2=G. E. Davis |year=2001 |pages=132 pp |publisher=Natural History Museum of Los Angeles County }}
8. ^{{cite web |url=http://www.tolweb.org/Malacostraca/6253 |title=Malacostraca |work=Tree of Life Web Project |date=January 1, 2002}}
9. ^{{cite web |url=http://crustacea.nhm.org/peet/leptostraca/classification.html |title=Classification |publisher=Natural History Museum of Los Angeles County |year=2004 |author=Todd Haney |accessdate=August 8, 2007}}
10. ^1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 {{cite journal |author1=Genefor K. Walker-Smith |author2=Gary C. B. Poore |year=2001 |title=A phylogeny of the Leptostraca (Crustacea) with keys to families and genera |journal=Memoirs of Museum Victoria |volume=58 |issue=2 |pages=383–410 |url=http://museumvictoria.com.au/pages/4128/58_2_walker.pdf|doi=10.24199/j.mmv.2001.58.21 }}
11. ^{{Cite journal |author=V. V. Petryashov |year=1996 |title=Pseudonebaliopsis atlantica gen. n., sp. n., is a new genus and a new species of Leptostraca (Crustacea, Malacostraca) from the central part of the North Atlantic |journal=Zoologichesky Zhurnal |volume=75 |issue=12 |pages=1892–1896 |language=Russian}}
12. ^{{cite web|url=http://crustacea.nhm.org/peet/leptostraca/synonymies.html |title=Synonymy |work=Los Angeles PEET Project on Leptostraca |author=Todd Haney |accessdate=February 28, 2009 |publisher=Natural History Museum of Los Angeles County |deadurl=yes |archiveurl=https://web.archive.org/web/20080906133441/http://crustacea.nhm.org/peet/leptostraca/synonymies.html |archivedate=September 6, 2008 |df= }}
13. ^{{cite journal |url=http://atiniui.nhm.org/pdfs/10200/10200.pdf |journal=Proceedings of the Biological Society of Washington |volume=118 |issue=l |pages=3–20 |year=2005 |title=Nebalia kensleyi, a new species of leptostracan (Crustacea: Phyllocarida) from Tomales Bay, California |author=Todd A. Haney & Joel W. Martin |doi=10.2988/0006-324X(2005)118[3:NKANSO]2.0.CO;2 |editor1-last=Boyko |editor1-first=Christopher B.}}
14. ^{{cite journal |journal=Journal of the Marine Biological Association of the United Kingdom |year=2007 |volume=87 |issue=5 |pages=1247–1254 |doi=10.1017/S0025315407057487 |title=Nebalia kocatasi sp. nov., a new species of leptostracan (Crustacea: Phyllocarida) from Izmir Bay (Aegean Sea, eastern Mediterranean) |author1=Juan Moreira |author2=Cengiz Kocak |author3=Tuncer Katagan |url=http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=1367440}}
15. ^{{cite journal |journal=Journal of Crustacean Biology |year=2012 |volume=32 |issue=4 |pages=641–653 |doi=10.1163/193724012X638482 |title=A New Species of Leptostraca, Nebalia koreana (Malacostraca: Phyllocarida), from South Korea |author1=Ji-Hun Song |author2=Juan Moreira |author3=Gi-Sik Min }}
16. ^{{cite journal |url=http://atiniui.nhm.org/pdfs/4327/4327.pdf |title=Nebalia schizophthalma, a new species of Leptostracan (Malacostraca) from deep waters off the east coast of the United States |author1=Todd A. Haney |author2=Robert R. Hessler |author3=Joel W. Martin |journal=Journal of Crustacean Biology |volume=21 |issue=1 |pages=192–201 |year=2001 |doi=10.1651/0278-0372(2001)021[0192:NSANSO]2.0.CO;2}}
17. ^{{cite journal |journal=Journal of the Marine Biological Association of the United Kingdom |year=2003 |volume=83 |issue=2 |pages=341–350 |doi=10.1017/S0025315403007173h |title=Nebalia troncosoi sp. nov., a new species of leptostracan (Crustacea: Phyllocarida: Leptostraca) from Galicia, Iberian Peninsula (north-east Atlantic) |author1=Juan Moreira |author2=Eva Cacabelos |author3=Marta Domínguez }}
18. ^1 {{cite journal |url=http://www.ingentaconnect.com/content/tandf/ssar/2003/00000088/00000003/art00003 |author1=J. Moreira |author2=L. Gestoso |author3=J. S. Troncoso |year=2003 |title=Two new species of Sarsinebalia (Crustacea, Leptostraca) from the Northeast Atlantic, with comments on the genus |journal=Sarsia: North Atlantic Marine Science |volume=88 |issue=3 |pages=189–209 |doi=10.1080/00364820310001390}}
19. ^{{cite journal |author1=Todd Haney |author2=Joel W. Martin |year=2004 |title=A new genus and species of leptostracan (Crustacea: Malacostraca: Phyllocarida) from Guana Island, British Virgin Islands, and a review of leptostracan genera |journal=Journal of Natural History |volume=38 |issue=4 |pages=447–469 |url=http://atiniui.nhm.org/pdfs/10028/10028.pdf|doi=10.1080/0022293021000033210}}

External links

  • {{Commonscat-inline|Leptostraca|Leptostraca}}
  • {{Wikispecies-inline|Leptostraca|Leptostraca}}
{{Malacostraca}}{{Taxonbar|from=Q127044}}{{Authority control}}

5 : Leptostraca|Crustacean orders|Malacostraca|Cambrian first appearances|Prehistoric arthropod orders
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