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来自维基百科，自由的百科全书
爬行亞目（學名：Reptantia）是1880年命名的十足目甲殼動物的兩個亞目之一，另一個是游泳亞目。這個亞目泛指在水裏依靠爬行而非游泳活動的十足目物種，包括有：海螯蝦科、短尾下目及其他知名的甲殼動物物種。
在較舊的分類，爬行亞目連同游泳亞目是十足目兩個亞目：當中爬行亞目包括了在水裏爬行的物種；而游泳亞目包括了各種的蝦。1963年，Martin Burkenroad發現游泳亞目是並系群，而且不符合命名法則，所以把十足目重新分類為枝鰓亞目（Dendrobranchiata）及抱卵亞目（Pleocyemata）兩個亞目：抱卵亞目包含了舊有爬行亞目的所有成員，即蟹、龍蝦、螯蝦及其他，再加上真蝦下目（Caridea）及Stenopodidea[1]。儘管爬行亞目依然是個有效的單系群，但不再是亞目級，被視為不分類支序[2]。
The name Reptantia means "those that walk", and contains those 十足目s whose primary mode of locomotion is to walk along a surface using the pereiopods rather than swimming through the water with the pleopods. Despite this, many reptants are able to propel themselves through the water, and many non-reptants can and will walk.
The 支序圖 below shows Reptantia under the sub-order 抱卵亞目 within the larger order 十足目, from analysis by Wolfe et al., 2019.[2]
| 十足目 Decapoda |
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爬行亞目包括下列下目：
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