Helix dissection_S10 - ZOO 115 Invertebrate Zoology Helix...

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ZOO 115 Invertebrate Zoology Helix aspersa Dissection
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Helix aspersa Subclass Pulmonata Found everywhere in the world Can hibernate surve temps as low as 23 degrees F (-5 C) Mantle becomes impermeable http://www.ohluvi.com/new// img/Helix_aspersa-Nl2A.jpg
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Herbivorous Major agricultural pest Introduced into CA in 1850s French cuisine - Escargot Top speed 1.3 cm/sec http://www.orchidlady.com/assets/images/largeSnails.jpg http://www.finestchef.com/Escargot.jpg
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Top speed ~ 1.5 cm/sec Snail races Mostly U.K. World Annual Snail Racing Championships in Norfolk, England http://mjuzik.files.wordpress.com/2009/02/snail-race.jpg
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Hermophrodite Mating takes several hours Eggs (4 mm) laid in two weeks ~ 80 eggs up to six batches a year. Snails reach maturity in one to two years. http://1.bp.blogspot.com/_ 512VEbm7xB0/SXnDCXh0z6I/AAAAAAAATws/nfuvT3 o1ZuY/s400/11.jpg
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Examine the shell and find these parts Notice that there is no operculum webs.lander.edu/rsfox/invertebrates/helix.html http://webs.lander.edu/rsfox/invertebrates/helix.html
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This note was uploaded on 09/08/2010 for the course ZOOL 115 at San Jose State University .

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Helix dissection_S10 - ZOO 115 Invertebrate Zoology Helix...

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