CrustaceaIngrida OlendraitėVitalija Pundziūtė

Molecular biologistsUniversity of Vilnius

The aim: to introduce a class of Crustacea

Outline of presentation:(part I)

The basic lineamentSystems: digestive and excretory, respiratory,

cardiovascular.(part II)

Nervous (sense organs included) system and reproduction (development included)Classification Conclusions

The basic lineament

• Where do they live?• Size.

woodlouse krill crab barnacles

Structure:head

thoraxabdomen

Moult

digestive system

foregut; midgut;

hindgut;

Excretory system

Antennal glandMaxillary gland

In form of amoniaUric acid

Cardiovascular

Dorsal ostiate heart within a pericardial cavity and variously developed

vessels emptying into an open hemocoel.

Respiratory system Gills

body surface

Nervous system

Sensory organs

Reproduction

Development

Classification1

22

3

4

5 6

The main issues “Invertebrates” (R.C. Brusca, 2003)“Invertebrates” (2ed edition, R.C.Brusca, 2003) “An introduction to the invertebrates” (2ed

edition, Janet Moore, Cambridge press)“ Bestuburių zoologija” (R. Kazlauskas, 1988) “Bestuburių zoologija. Iliustruotas žinynas”

(“Šviesa” press)http://www.darwinsgalapagos.com/animals/custa

cea_crustaceans.htmhttp://www.mesa.edu.au/friends/seashores/crust

aceans.htmlhttp://www.britannica.com/EBchecked/topic/144

848/crustacean