Decapoda

Decapoda
Temporal range: Devonian–recent
Haeckel Decapoda.jpg
"Decapoda" from Ernst Haeckel's Kunstformen der Natur, 1904
Scientific classification edit
Kingdom:Animalia
Phylum:Euarthropoda
Subphylum:Crustacea
Class:Malacostraca
Superorder:Eucarida
Order:Decapoda
Latreille, 1802
Suborders

Dendrobranchiata
Pleocyemata
See text for superfamilies.

The Decapoda or decapods (literally "ten-footed") are an order of crustaceans within the class Malacostraca, including many familiar groups, such as crayfish, crabs, lobsters, prawns, and shrimp. Most decapods are scavengers. The order is estimated to contain nearly 15,000 species in around 2,700 genera, with around 3,300 fossil species.[1] Nearly half of these species are crabs, with the shrimp (about 3000 species) and Anomura including hermit crabs, porcelain crabs, squat lobsters (about 2500 species) making up the bulk of the remainder.[1] The earliest fossil decapod is the Devonian Palaeopalaemon.[2]

Anatomy

Decapods can have as many as 38 appendages,[3] arranged in one pair per body segment. As the name Decapoda (from the Greek δέκα, deca-, "ten", and πούς / ποδός, -pod, "foot") implies, ten of these appendages are considered legs. They are the pereiopods, found on the last five thoracic segments.[3] In many decapods, one pair of these "legs" has enlarged pincers, called chelae, with the legs being called chelipeds. In front of the pereiopods are three pairs of maxillipeds which function as feeding appendages. The head has five pairs of appendages, including mouthparts, antennae, and antennules. There are five more pairs of appendages on the abdomen. They are called pleopods. There is one final pair called uropods, which, with the telson, form the tail fan.[3]

Other Languages
Afrikaans: Tienpotiges
asturianu: Decapoda
azərbaycanca: Onayaqlılar
Bân-lâm-gú: Cha̍p-kha-ba̍k
беларуская (тарашкевіца)‎: Дзесяціногія ракападобныя
български: Десетоноги
brezhoneg: Decapoda
català: Decàpodes
Cebuano: Decapoda
čeština: Desetinožci
Ελληνικά: Δεκάποδα
español: Decapoda
Esperanto: Dekpieduloj
euskara: Decapoda
فارسی: ده‌پایان
français: Decapoda
Gaeilge: Decapoda
galego: Decápodos
한국어: 십각목
hrvatski: Deseteronošci
Bahasa Indonesia: Dekapoda
interlingua: Decapoda
italiano: Decapoda
Kiswahili: Kamba (gegereka)
kurdî: Dehpê
Latina: Decapoda
latviešu: Desmitkājvēži
Lingua Franca Nova: Decapoda
മലയാളം: ഡെക്കാപോഡ
Mìng-dĕ̤ng-ngṳ̄:
Nederlands: Tienpotigen
日本語: 十脚目
norsk: Tifotkreps
norsk nynorsk: Tifotkreps
occitan: Decapoda
português: Decapoda
Scots: Decapoda
Simple English: Decapod
slovenčina: Desaťnožce
slovenščina: Deseteronožci
српски / srpski: Decapoda
srpskohrvatski / српскохрватски: Deseteronošci
Tagalog: Decapoda
lea faka-Tonga: Veʻehongofulu
українська: Десятиногі
اردو: دسپا
Tiếng Việt: Giáp xác mười chân
Winaray: Decapoda
粵語: 十腳目
中文: 十足目