Marine life  /  Lizardfish & flatheads
10 of 1316 species
Group

Lizardfish & flatheads

Lizardfish, sand divers and flatheads: bottom ambush predators that lie still on sand or bury with the eyes out, and take a passing fish from a standing start.

Species
10
Depth
0–40 m
Rarity range
1 star of 5, found on most divesto 3 stars of 5, a good week should turn one up
Night only
None
Can hurt a diver
1
Destinations
11

They do not move when approached, which makes them easy to photograph and easy to kneel on. A lizardfish propped on its pelvic fins on open sand will let a camera come to a few centimetres.

The flatheads are flattened top to bottom rather than propped up, and are marked to match coarse sand and rubble. The crocodilefish is the one most divers know and carries a lacy iris flap over the eye that breaks up the pupil.

All of them are worth a second look for what is on them. Small commensals and parasitic isopods turn up on lizardfish and flatheads regularly.

10 species

Photographed first, then commonest
Variegated lizardfish, Synodus variegatus
Variegated lizardfish
Synodus variegatus
Sand and rubble · 1–40 m
1 star of 5, found on most divesin Lembeh Strait Caution
Crocodilefish, Cymbacephalus beauforti
Crocodilefish
Cymbacephalus beauforti
Rubble, sand and reef flat · 1–30 m
2 stars of 5, usually seen in a weekin Lembeh Strait

The other 8, written up but not yet photographed

Every one has a page. They are shown as a list rather than as pictures because nothing has been photographed or logged for them yet, and a species with nothing behind it should not sit in front of one that has.

Where they are recorded

How many of the 10 carry a record at each destination. A species usually carries several, so these do not add up to 10.

Lembeh Strait 6 Anilao 5 Dauin & Dumaguete 5 Bali 5 Papua New Guinea 3 Australia 2 Ambon 1 Red Sea 1 Florida 1 Bahamas 1 Cayman Islands 1

The other groups

Anemonefish 11 Angelfish 25 Batfish 3 Blennies 26 Butterflyfish 35 Cardinalfish 13 Damselfish 32 Dottybacks 5 Dragonets 5 Eels & garden eels 18 Flatfish 8 Frogfish & anglers 26 Goatfish 8 Gobies & dartfish 29 Groupers & anthias 42 Hawkfish 5 Jacks & open-water fish 29 Jawfish 4 Morays 26 Morwongs & trumpeters 4 Parrotfish 16 Pufferfish & boxfish 23 Rabbitfish 5 Scorpionfish & lionfish 47 Seahorses & pipefish 53 Shrimpgobies 17 Snappers, breams & sweetlips 39 Squirrelfish & soldierfish 9 Surgeonfish & unicornfish 26 Triggerfish & filefish 25 Trumpetfish & cornetfish 4 Wrasses 56 Other fish 46 Sharks & rays 63 Turtles, sea snakes & crocodiles 11 Marine mammals & birds 10 Cephalopods 36 Nudibranchs & sea slugs 137 Sea snails & shells 26 Shrimps 38 Mantis shrimps 5 Crabs 45 Hermit crabs 10 Lobsters & squat lobsters 13 Isopods & parasitic crustaceans 5 Amphipods 2 Sea stars 18 Brittle stars & basket stars 7 Feather stars 2 Sea urchins 23 Sea cucumbers 12 Worms 11 Flatworms 3 Jellyfish & stinging drifters 10 Anemones & zoanthids 12 Corals & sponges 29 Sea squirts 4 Blackwater & plankton 52 Other invertebrates 2

All 1316 species in one index, with filters for destination, rarity and hazard.

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