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  Mollusc Information

There are 58 informational link matches for 'Mollusc'.
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Atlantic Oval Squid
Atlantic Oval Squid
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More About Molluscs ...
The mollusks or molluscs are the large and diverse phylum Mollusca, which includes a variety of familiar creatures well-known for their decorative shells or as seafood. These range from tiny snails and clams to the octopus and squid (which are considered the most intelligent invertebrates). The giant squid is the largest invertebrate, and, except for their larvae and some recently captured juveniles, has never been observed alive, although the Colossal Squid is likely to be even larger.

Mollusks are triploblastic protostomes. The principal body cavity is a blood-filled hemocoel, with an actual coelom present but reduced to vestiges around the hearts, gonads, and metanephridia (kidney-like organs). The body is divided into a head, often with eyes or tentacles, a muscular foot and a visceral mass housing the organs. Covering the body is a thick sheet called the mantle, which in most forms secretes a calcareous shell.

Mollusks have a mantle, which is a shell-like outer cover, and a muscular foot that is used for motion. Many mollusks have their mantle produce a calcium carbonate external shell and their gill extracts oxygen from the water and disposes waste. All species of the phylum Mollusca have a complete digestive tract that starts from the mouth to the anus. Many have a radula, mostly composed of chitin, in the mouth, which allows then to scrape food from the surface by sliding back and forth. Mollusks also have a coelom, made from cell masses, where all organs are suspended. Unlike Coelomates, mollusks lack body segmentation.

Development passes through one or two trocophore stages, one of which (the veliger) is unique to the group. These suggest a close relationship between the mollusks and various other protostomes, notably the Annelids.
Source: Wikipedia Read more about Molluscs
INFO LINKS
Gastropod
Jacksonville Shell Club
Gastropods Read More
Common snail
BBC Nature: Wildfacts
Common snail: Facts and Pictures Read More
Freshwater mussel
BBC Nature: Wildfacts
Freshwater mussel: Facts and Pictures Read More
Great pond snail
BBC Nature: Wildfacts
Great pond snail: Facts and Pictures Read More
African Land Snail
Honolulu Zoo
African Land Snail Read More
African Land Snail
Honolulu Zoo
African Land Snail Videos Read More
Eastern Oyster
Pelotes Island Nature Preserve
Eastern Oyster Read More
Snail
The Longpoint schoolhouse
Snail Read More
Blue Dorid
MarineBio.com
Blue Dorid: facts, pictures, habitat, and other information Read More
Giant Octopus
MarineBio.com
Giant Octopus: facts, pictures, habitat, and other information Read More
Bivalve Molluscs
Bivalve seashells identification guide
Beautiful high res pictures of various bivalve species Read More
Sea Slug
Sea Slug Forum
Everything you ever wanted to know about sea slugs! Read More
Snail
BBCi
About snail's slime Read More
nautilus
BBCi
General information. Good for kids Read More
Mollusc
Oceanic Research Group
Lesson plans with narrative and pictures Read More
Common Octopus
National Geographic
Common Octopus fact sheet and pictures; audio clip Read More
Geographic Cone Snail
National Geographic
Geographic Cone Snail fact sheet and pictures; video clip Read More
Giant Clam
National Geographic
Giant Clam fact sheet and pictures; video clip Read More
Giant Pacific Octopus
National Geographic
Giant Pacific Octopus fact sheet and pictures Read More
Giant Squid
National Geographic
Giant Squid fact sheet and pictures Read More
Golden Cowrie
National Geographic
Golden Cowrie fact sheet and pictures Read More
Nudibranch
National Geographic
Nudibranch fact sheet and pictures Read More
Cuttlefish
Oceanes - the holiday designer
Brief description and categorized information about Cuttlefish Read More
Nautilus
Oceanes - the holiday designer
Brief description and categorized information about Nautilus Read More
Nudibranch
Oceanes - the holiday designer
Brief description and categorized information about Nudibranch Read More
Octopus
Oceanes - the holiday designer
Brief description and categorized information about Octopus Read More
Nudibranch
Jeff's Nudibranch Site and Coral Reef Gallery
Spectacular pictures of Nudibranches Read More
Cuttlefish
Unique Australian Animals
Categorized information on Cuttlefish including description, habitat, feeding, etc. Has nice pictures, too. Read More
Clam
Offshore/Inshore Fisheries Development
Information on life cycle, anatomy, behavior, distribution and migration, etc. Read More
Octopus
Tonmo.com
Site devoted to Octopuses and other molluscs Read More
mollusc
NASA
Here's some general information on mollusks  Read More
squid
oceanicresearch.org
Here's some information on the giant squid. Be sure to read the section on squid myths. Read More
Chambered Nautilus
National Zoo
Chambered Nautilus fact sheet Read More
Giant Pacific Octopus
National Zoo
Giant Pacific Octopus fact sheet Read More
Humboldt or Jumbo Squid
National Zoo
Humboldt or Jumbo Squid fact sheet Read More
Cephalopod
National Zoo
Cephalopod fact sheet Read More
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