reptiles

snake:
From Middle English *snakon *snag-, *sneg- (“‘to crawl; a creeping thing’”).
• enPR: snāk
• IPA: /sneɪk/
• SAMPA: /sneIK/
• Rhymes: -eɪk
A legless reptile of the sub-order Serpentes with a long, thin body and a fork-shaped tongue.

Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Sauropsida
Subclass: Diapsida
Infraclass: Lepidosauromorpha
Superorder: Lepidosauria
Order: Squamata
Suborder: Serpentes
Linnaeus, 1758

Ophidiophobia or Ophiophobia refers to the fear of snakes.