新蛇小目

新蛇小目（學名：Caenophidia）是蛇亞目真蛇下目的一個小目，在蛇亞目中種類最多，分為六科。包括各種毒蛇、無毒蛇。

新蛇小目
眼鏡王蛇
科學分類
界：	動物界 Animalia
門：	脊索動物門 Chordata
綱：	爬蟲綱 Reptilia
目：	有鱗目 Squamata
亞目：	蛇亞目 Serpentes
下目：	真蛇下目 Alethinophidia
演化支：	非洲真蛇類 Afrophidia
小目：	新蛇小目 Caenophidia Hoffstetter, 1939
科
見正文
異名
Xenophidia

下級分類

本小目包括以下科：

• † Anomalophiidae
• † Russellophiidae

瘰鱗蛇超科 Acrochordoidea

• 瘰鱗蛇科 Acrochordidae
• †古杯蛇科 Palaeophiidae
• † Nigerophiidae

黃頷蛇類 Colubroides

• 閃皮蛇科 Xenodermidae

黃頷蛇形類 Colubriformes
(Günther, 1864)

• 鈍頭蛇科 Pareatidae

Endoglyptodonta (Zaher et al., 2009)^[1]

• 蝰科 Viperidae
• 水蛇科 Homalopsidae

眼鏡蛇超科 Elapoidea

• 鏟吻蛇科 Prosymnidae
• Psammodynastidae Das, Greenbaum, Brecko, Pauwels, Ruane, Pirro & Merilä, 2024^[2]
• Psammodynastes Günther, 1858
  • Psammodynastes pulverulentus (Boie, 1827)
• 花條蛇科 Psammophiidae
• Pseudoxyrhophiidae
  • Alluaudina Mocquard, 1894
  • Amplorhinus A.Smith, 1847
  • Brygophis Domergue & Bour, 1988
  • Buhoma Ziegler, Vences, Glaw & Böhme, 1997
    • Buhoma depressiceps (Werner, 1897)
    • Buhoma procterae (Loveridge, 1922)
    • Buhoma vauerocegae (Tornier, 1902)
  • Compsophis Mocquard, 1894
  • Ditypophis Günther, 1881
  • Dromicodryas Boulenger, 1893
  • Duberria Fitzinger, 1826
  • Elapotinus Jan, 1862
  • Exallodontophis Cadle, 1999
  • Heteroliodon Boettger, 1913
  • Ithycyphus Günther, 1873
  • Langaha Bonaterre, 1790
  • Leioheterodon A.M.C.Duméril, Bibron & A.H.A.Duméril, 1854
  • Liophidium Boulenger, 1896
  • Liopholidophis Mocquard, 1904
  • Lycodryas Günther, 1879
  • Madagascarophis Mertens, 1952
  • Micropisthodon Mocquard, 1894
  • Pararhadinaea Boettger, 1898
  • Parastenophis Domergue, 1995
  • Phisalixella Domergue, 1995
  • Pseudoxyrhopus Günther, 1881
  • Thamnosophis Jan, 1863
• 屋蛇科 Lamprophiidae
• 穴蝰科 Atractaspididae
• 眼鏡蛇科 Elapidae ^[a]

黃頷蛇總科 Colubroidea

• 劍蛇科 Sibynophiidae
• 水游蛇科 Natricidae
• 食螺蛇科 Dipsadidae
• 黃頷蛇科 Colubridae

一些常見的寵物蛇有：

• 吊帶蛇
• 翠青蛇
• 王蛇
• 鼠蛇
• 軟蛇
• 水蛇

註釋

1. The elapids in the past were considered to have two subfamilies–the Elapinae made of terrestrial species and Hydrophiinae made of the marine species.^[3] In 1997, Slowinski, Knight and Rooney found in their phylogenetic analysis using amino acid sequences from venom proteins, that the Australasian terrestrial species nested within the Hydrophiinae. This led to removing the Australasian terrestrial species and placing them in Hydrophiinae.^[4][3] This has been supported in subsequent recent genomic analyses, though these same studies also found the subfamily Elapinae to be paraphyletic in respect to the Hydrophiinae.^[5][6][7] These studies have found coral snakes, cobras and mambas, kraits, and African gartersnakes forming successive outgroups to Hydrophiinae.^[6][7] Since clade names are available for these groups with the exception of the Elapsoidea, bringing back the subfamilies Calliophiinae, Micrurinae, Najinae, and Bungarinae is ideal.