At a glance

Most common: SNAKE, COBRA, VIPER. Rarest: ANOLE, VARAN, KRAIT. 2 have been a Wordle answer (SNAKE, GECKO). 2 more are on the answer list and could still come up.

Five-letter reptiles and amphibians (12)

WordRarityWordle
SNAKEUncommon#952
COBRARarepossible answer
VIPEREpicpossible answer
GATOREpic—
GECKOEpic#325
ADDERLegendary—
MAMBALegendary—
SKINKMythic—
AGAMAMythic—
KRAITMythic—
VARANMythic—
ANOLEMythic—

Four-letter reptiles and amphibians (4)

FROG, TOAD, NEWT, CROC

Three-letter reptiles and amphibians (3)

BOA, ASP, EFT

Questions

What is the most common five-letter reptile or amphibian?

SNAKE, followed by COBRA and VIPER, by how often they appear in written English.

What is the rarest five-letter reptile or amphibian?

ANOLE is the rarest on this list, then VARAN and KRAIT. In Wordillion a word that rare scores Mythic.

Which five-letter reptiles and amphibians have been Wordle answers?

SNAKE (#952), GECKO (#325).

Rarity is how often a word appears in a large sample of written English (the wordfreq dataset), the same measure Wordillion scores with. “Wordle” shows the puzzle number if the word has been a New York Times Wordle answer, or “possible answer” if it is on the answer list but has not come up yet.