ANNELIDA JEFFREY WIEDIYANTO

ANNELIDA EARTHWORM Kingdom: Animalia Phylum: Annelida Class: Oligochaete Subclass: Palpata Order: Haplotaxida Family: Acanthodrilidae  Genus: Lumbricus Species: L.terrestris Latin meaning “little ring”, sometimes also called as segmented worms. The animals that are classified as Annelids are segmented worms. No legs No skeleton Have body that are divided into little segments There are about 22,000 species including rag worms, earthworms, and leeches. TO THE ECOSYSTEM: Without worms, plant would not be able to grow, as it helps fertilize, mix, and provide proper minerals to soil

ANATOMY (EARTHWORM) BODY Metamerism Are segmented which looks like many little rings joined together Make them flexible and strong in its movement Made out of 100-150 segmented bodies Structural function Help them to move MUSCLE Setae Control the worm when moving through soil They can relax or contract their muscles independently Lengthen one specific area

3 CLASSES OF ANNELIDS Polychaetes Oligochaete Hirudinea Marine Fan worms Oligochaete Freshwater Terrestrial Earthworms Hirudinea Leeches

Oligochaeta (COMMON EARTHWORM) Name means “few long hairs” Few setae per body segment Terrestrial and freshwater Kingdom: Animalia Phylum: Annelida Class: Clitellata Subclass: Palpata Order: Haplotaxida Family: Acanthodrilidae  Genus: Lumbricus Specis: L.terrestris

Polychaetes (EUROPEAN FAN WORM) Fan Worms are tube dwellers that have tentacles for filter feeding Name means “many long hairs” Many setae per body segment Mostly marine annelid Divided into two groups Free moving forms Tube dwelling forms Parapodia used for Crawling Swimming Feeding Rag worms are mainly omnivorous but many are active carnivores. Kingdom: Animalia Phylum: Annelida Class: Polycheta Subclass: Palpata Order: Canalipapata Suborder: Sabellida Family: Sabellidae Genus: Schizobranchia Specis: S.insignis Kingdom: Animilia Phylum: Annelida Class: Polychaeta Subclass: Errantia Order: Phyllodocida Family: Nereididae Genus: Nereis Species: Nereis Pelagica

ANATOMY (EUROPEAN FAN WORM) BODY Their body is divided into segments and only the first two segments are different from the rest First Head Eyes Two jaws Second Nuchal organ Nose Track prey Fish Small shrimp Other worms

Hirudinea (LEECHES) Kingdom: Animalia Hirudinea means leeches Mostly freshwater, some marine and terrestrial Consume blood No parapodia or setae Clitellum present Kingdom: Animalia Phylum: Annelida Class: Hirudinea Order: Arhynchobdellida Family: Hirudidae Genus: Hirudo Specis: Hirudo medicinalis

ANATOMY (MEDICINAL LEECH) BODY Cylindrical bodies Divided into three segments The top part Black or brown color They don’t really have muscle Therefore they could only swim or attach themselves into something using their sucker SUCKER Posterior To attach themselves Anterior To eat Kingdom: Animalia Phylum: Annelida Class: Hirudinea Order: Arhynchobdellida Family: Hirudidae Genus: Hirudo Specis: Hirudo medicinalis

REPRODUCTION Polychaeta and Oligochaeta can both reproduce sexually and asexually, while leeches can only reproduce asexually. Asexual reproduction does not involve the formation of gametes (sperm and eggs), it is by budding

BIBLIOGRAPHY http://www.nhc.ed.ac.uk/index.php?page=24.25.312.329 https://www.uas.alaska.edu/arts_sciences/naturalsciences/biology/tamone/catalog/a nnelida/Schizobranchia_insignis/taxonomy.html#Phylum_Annelida: https://www.sas.upenn.edu/~rlenet/Earthworms.html