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Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Maxillopoda
Subclass: Copepoda
Order: Monstrilloida
Sars, 1901 [1]
Family: Monstrillidae
Dana, 1849 [2]

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].


  1. ^ a b Monstrilloida (TSN 88989). Integrated Taxonomic Information System.
  2. ^ Monstrillidae (TSN 88991). Integrated Taxonomic Information System.
  3. ^ J. W. Martin & G. E. Davis (2001) (PDF). An Updated Classification of the Recent Crustacea. Natural History Museum of Los Angeles County. pp. 132 pp.  
  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: 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.  
  6. ^ Cristina de Oliveira Dias (1996). "Monstrilloida (Copepoda) off the Brazilian coast". Hydrobiologia 324: 253–256. doi:10.1007/BF00016397 (inactive 2008-10-03).  
  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.  
  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.  


Up to date as of January 23, 2010

From Wikispecies


Main Page
Cladus: Eukaryota
Supergroup: Unikonta
Cladus: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Phylum: Arthropoda
Subphylum: Crustacea
Classis: Maxillopoda
Subclassis: Copepoda
Infraclassis: Neocopepoda
Superordo: Podoplea
Ordo: Monstrilloida
Familiae: Monstrillidae


  • Suárez-Morales, E.; Morales-Ramírez, A. 2009: New species of Monstrilloida (Crustacea: Copepoda) from the eastern tropical Pacific. Journal of natural history, 43: 1257-1271.
  • Suárez-Morales, E.; Ramírez, F.C.; Derisio, C. 2008: Monstrilloida (Crustacea: Copepoda) from the Beagle Channel, South America. Contributions to zoology, 77(4): 217-226. PDF


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