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Top 5 smallest vertebrate species

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The 5 smallest vertebrate species by adult body length: Brachycephalus pulex (Brazilian flea toad), Brachycephalus dacnis, and more.

Snapshot · 2026-09-23

Today's five picks, one great list, and today's game. Free, every evening.

  1. 1

    Brachycephalus pulex (Brazilian flea toad)

    ~6.45 mm

  2. 2

    Brachycephalus dacnis

    ~6.95 mm

  3. 3

    Paedophryne amauensis (frog)

    ~7.0-8.0 mm

  4. 4

    Schindleria brevipinguis (infantfish)

    ~7.0 mm (males)

  5. 5

    Paedocypris progenetica (fish)

    ~7.9 mm