Octavio’s

Book

Crustacea

Crustacea

ns

ns

Crustaceans
are
Invertebrates

(no backbones)

The lobsters
and crabs

are

crustaceans

Their body is
encased in
a stiff shell
that …

… must be
shed to allow
the animal to
grow

The shrimps
and barnacles
are
crustaceans

A crustaceans
body is made
of 3 parts:
head, thorax
and abdomen

although, the
head and
thorax may
fuse

Only

crustaceans

have two pairs
of antenna in
the head

The krill and
horseshoe
crab are
crustaceans

Most
crustaceans
are aquatic

..but some
have adapted
to terrestrial
life

The hermit
crab and
woodlice are
terrestrial
crustaceans

Few

crustaceans

are parasites
and live

attached

to their host

The sea lice
and whale lice
are
crustaceans

Species of
crustaceans
can look very
different one of
the other

but all have

the

basic larval
form known as

nauplius

Some
crustaceans

are an important

ingredient

in the culinary
tradition of
many
countries

The science
that study the
crustaceans is
the

carcinology

Other interesting

crustaceans
are the

cleaner

shrimps

There exists
more than
55,000

species

of

crustaceans