Monstrilloida


Monstrilloida
Monstrilloida
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Maxillopoda
Subclass: Copepoda
Order: Monstrilloida
G. O. Sars, 1901 [1]
Family: Monstrillidae
Dana, 1849 [2]
Genera
  • Monstrilla Dana, 1849
  • Monstrillopsis G. O. Sars, 1921
  • Thaumalea Krøyer, 1849

Monstrilloida is an order of copepods with a cosmopolitan distribution in the world's oceans. The order contains a single family, Monstrillidae;[1] the family Thaumatopsyllidae was formerly included in the order, but is now usually placed in the Cyclopoida.[3] The taxonomy of the family is undergoing a period of revision,[4] although some necessary changes are apparent; for instance, the genus Strilloma is now considered a taxonomic synonym of Monstrilla, the largest genus.[5]

The order is poorly known, biologically and ecologically, although the life cycle is known to differ from that of all other copepods.[6] The larvae are parasites of benthic polychaetes and gastropods, while the adults are planktonic and incapable of feeding, functioning solely to reproduce.[7]

The family Monstrillidae is characterised by having a well-developed fourth pair of swimming legs, but a rudimentary or absent fifth pair. Adults have no oral appendages, and the mouth leads only to a short, blind pharynx. Females carry a long pair of spines to which the eggs are attached, while males have a "genital protuberance, which is provided with lappets"; in both sexes, the genitalia are very different from those of all other copepods.[8]

References

Charybdis japonica.jpg Crustaceans portal
  1. ^ a b "Monstrilloida Sars, 1901". Integrated Taxonomic Information System. http://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=88989. Retrieved July 8, 2011. 
  2. ^ "Monstrillidae Dana, 1849". Integrated Taxonomic Information System. http://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=88991. Retrieved July 8, 2011. 
  3. ^ J. W. Martin & G. E. Davis (2001) (PDF). An Updated Classification of the Recent Crustacea. Natural History Museum of Los Angeles County. pp. 1–132. http://atiniui.nhm.org/pdfs/3839/3839.pdf. 
  4. ^ E. Suárez-Morales & J. B. Escamilla (2001). "Taxonomic report on some monstrilloids (Copepoda, Monstrilloida) from southeast Mexico with the description of a new species of Monstrilla". Journal of Natural History 35 (10): 1433–1445. doi:10.1080/002229301317067629. 
  5. ^ Eduardo Suárez-Morales & Rebeca Gasca (2004). "On the invalidity of Strilloma Isaac (Copepoda: Monstrilloida): observations from the type species". Zoological Studies 43 (2): 292–299. http://zoolstud.sinica.edu.tw/Journals/43.2/292.pdf. 
  6. ^ Cristina de Oliveira Dias (1996). "Monstrilloida (Copepoda) off the Brazilian coast". Hydrobiologia 324 (3): 253–256. doi:10.1007/BF00016397. http://www.springerlink.com/content/l03285552n6gl122/. 
  7. ^ E. Suárez-Morales & R. Palomares-García (1995). "A new species of Monstrilla (Copepoda: Monstrilloida) from a coastal system of the Baja California Peninsula, Mexico". Journal of Plankton Research 17 (4): 745–752. doi:10.1093/plankt/17.4.745. http://plankt.oxfordjournals.org/cgi/content/abstract/17/4/745. 
  8. ^ Charles C. Davis (1949). "A primary revision of the Monstrilloidea, with descriptions of two new species". Transactions of the American Microscopical Society 68 (3): 245–255. doi:10.2307/3223221. JSTOR 3223221. 

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