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Striated frogfish

Antennarius striatus

Conservation status IUCN: Least concern· LC
Striated frogfish (Antennarius striatus)
Photograph from Wikimedia Commons · Wikipedia article (it)

Where the name comes from

Antennarius comes from antenna, for the mobile rod it carries on its snout; striatus describes the dark stripes running along the body. The common name, in Italian as in English, looks at how it moves: it does not swim, it walks on the bottom on its pectoral fins like a frog on a leaf.

Facts

Group
Fish · Actinopterygii · Chondrichthyes
Order
Anglerfishes
Habitat
Bottoms with sponges, weed and debris between 10 and 200 metres
Range
Tropical and subtropical seas worldwide
Size
10–22 cm, 100–300 g
Diet
Fish and crustaceans drawn in by the lure
Lifespan
10 years

Characteristics

  • 01

    The lure on its snout is a branched filament imitating a worm.

  • 02

    It changes colour over weeks to match the bottom.

  • 03

    It has jointed pectoral fins with which it grips and walks.

What sets it apart

It has the fastest bite ever measured in a vertebrate: six thousandths of a second from open to shut, twelve times quicker than a blink. Expanding its mouth suddenly creates a vacuum that pulls the prey in along with the water, and the volume of the mouth cavity increases twelvefold in the same instant. It chases nothing — it simply sits still disguised as a sponge and waits for something to come and bite the false worm.

Next species

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