Millipede/ Millipede/ DiplopodaDiplopodaCentipede/ Centipede/ ChilopodaChilopoda Quade Walker & Sam AndrewsQuade Walker & Sam Andrews5/19/09 Period 25/19/09 Period 2

ArthropodaArthropoda MyriapodaMyriapoda

ArthropodaArthropoda MyriapodaMyriapoda

Classification Of AnimalsKingdom – AnimialiaPhylum – Anthropoda Jointed legs and an exoskeletonSubphylum - Myriapoda “Many-footed” with a two segmented body

• Class Chilopoda (centipedes “100 feet”) It has a flat, segmented body with a pair of legs on each segment.

 

• Class Diplopoda (millipedes “1000 feet”) It has two pairs of legs on each

body segment. The Greek translation is “double footed”.  

• Class Pauropoda (pauropods, pauropodans, and progoneates) Pauropods are a small (less than 5 mm), eyeless, pale terrestrial invertebrate with eleven segments and nine pairs of legs. Latin and Greek translate into

“small-footed.”  • Class Symphyla (pseudocentipedes and symphylans) small, blind, fast-

running centipede like animals.

Basic Body Form • Bilateral symmetryBilateral symmetry• exoskeletonexoskeleton• Head and segmented trunkHead and segmented trunk• The trunk has many legs The trunk has many legs

(Centipede has one pair for (Centipede has one pair for each segment, millipede has each segment, millipede has two pair for each segment.)two pair for each segment.)

• Centipedes body is flat, while Centipedes body is flat, while the millipede is more of a the millipede is more of a cylinder shape.cylinder shape.

• Head has antenna, eyes and Head has antenna, eyes and mouthmouth

Millipede

Shedding Exoskeleton

Shedding Exoskeleton

Reproduction MethodReproduction MethodReproduction MethodReproduction MethodBoth the centipede and millipede have separate sexes.The female lays eggs which are fertilized sexually by the male. Some species lay the eggs in a "nest" where they are guarded by the female. Others lay one egg at a time and then leave it.

Feeding and Digestive system

• Millipedes are herbivores mainly eating dead vegetation.

• Centipedes are carnivores. Their first pair of legs inject venom to kill prey. They feed on insects, earthworms, and slugs. They also eat dead vegetation.

• The digestive system is a gut that runs from the mouth to the anus.

• The gut is lined with a protective outer covering called a chitin, that is shed every so often.

Circulatory system

• It is an open system.It is an open system.• It has a hemocoele (blood cavity.)It has a hemocoele (blood cavity.)• They heart is located dorsally, or near the They heart is located dorsally, or near the

back.back.

The Respiratory SystemThe Respiratory System

The centipede and millipede get oxygen delivered straight to the cells through tunnels that branch from spirals or holes in the body wall.

Living EnvironmentLiving Environment

• Most Most ArthropodaArthropoda MyriapodaMyriapoda live under live under rocks, wood bark, caves rocks, wood bark, caves and in damp leaves.and in damp leaves.

• They prefer dark warm They prefer dark warm places.places.

• Centipedes and Millipedes Centipedes and Millipedes are found world wide, are found world wide, except in polar climatesexcept in polar climates

• They are mostly nocturnal They are mostly nocturnal creaturescreatures

Human Interaction • They avoid humans.• Some people eat centipedes• Some people keep them as pets (usually the bigger

ones)• In some cultures millipedes are used medically. They

treat everything from toothaches, earaches, joint illness, asthma, zits and more.

• Millipedes are used in the study of robotics.• Their likeness are used in advertising (shoe

commercials, air fresheners, etc.)

Unique and interesting features

• Milli means 1000 and centi means 100. Pede means foot. They don’t really have that many though.

• Fossils prove they have been around for a very long time. • Millipedes protect themselves by curling into a ball and

spraying hydrocyanic acid.• Some centipedes glow in the dark.

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•Author unknown. Centipedes and Millipedes May 23, 2009. http://www.geocities.com/thera_maria/centipedesandmillipedes.html

•Photographer Unknown. Hatari Invertebrates May 21,2000. http://www.merkerreptiles.com/Hatarihome.htm •Photographer Unknown. Centipede Stinger. May 21,2009. http://www.astrobargains.com/images/Gallery/Centipede.jpg•George Grall/Getty. Images How it Works. May 22,2009. http://animals.howstuffworks.com/insects/insect-pictures9.htm

•Dembsky, Jill. Amazon Rainforest Animals. “Millipede” May 21, 2009. http://www.dembsky.net/amazon/information3.html#ants

•Gustafson, Todd. Tanganyika train (millipede). May 22,2009. http://www.birdsasart.com/bn197.htm

References •Chapin, Edward. “Millipede.” The World Book Encyclopedia M Volume12. Chicago: Field Enterprises Educational Corporation: 1960. Page 472

•Ramel, Gordon. Earth-Life Web Productions. 5/22/2009 MrGordonRamel@yahoo.com

•Enchanted Learning. 5/23/2009. http://www.enchantedlearning.com/subjects/invertebrates/arthropod/Centipede.shtml

•Photo by Diltz, Jason. Seattle Bug Safari. 5/23/2009. www.seattlebugsafari.com/millipedes_centipede...

•Mike Janson and Joyce Pope (consultant editors). Go Pets America dot com. 5/22/2009 http://www.gopetsamerica.com/animals/arthropods.aspx

•Mader, Sylvia. Inquiry into Life 4th edition. Dubuque, Iowa. Wm C. Brown Publishers, College Division. 1985. pages 608-610

•Microsoft Encarta Reference Library 2005 1993-2004 Microsoft Corporation

•Unknown Phtographer. May 23,2009. http://www.geneseo.edu/~Beary/millipede4shedding%20003.jpg

•R. Bessin & B. Newton. Department of Entomology, University of Kentucky. May 23,2009 http://www.uky.edu/Ag/Entomology/ythfacts/resourc/weebst/wb14/cent2.jpg