talking points for nature guides
crustacea text index | photo index
Phylum Arthropoda > Subphylum Crustacea > Class Malacostraca > Order Decapoda
Photo index of crabs on Singapore shores
including crab-like animals

small
body width < 3 cm
small with long eyestalks
body width < 3cm
medium
body width 3-5cm
large
body width >5cm
swimming crabs
(last pair of legs paddle-shaped)

These are NOT true crabs
hermit crabs
(crab-like in shells)
tiny porcelain crabs
3 pairs of walking legs
(instead of 4 pairs as in true crabs)
    horseshoe crabs
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photo index of
crustaceans on this site
Crustaceans
all crustaceans

Crabs
all crabs and crab-like

small

body width <2 cm

small with long eyestalks


small porcelain crabs

3 pairs walking legs

medium
body width 3-5cm

large
body width >5cm

swimming crabs
last pair of legs paddle-shaped

hermit crabs
live in shells
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