Phylum Mollusca. Coelom. Acoelom. Tissues. Who are the Members of the Phylum Mollusca ?. Mollusca can be broken down into seven classes: Gastropoda Pelecypoda Cephalopoda Aplacophora Monoplacophora Polyplacophora Scaphopoda. Mollusca Classes cont.
- The soft bodied portion that contains the internal organs
- A strong, muscular portion used for locomotion which is adapted as tentacles in cephalopods
Illustration of the general features of all mollusks
example: snails used their foot to creep over rocks and plants, octopuses use their tentacles to capture prey
Underside of a Limpet
.. and a lonely garden slug….
Above right: an opened oyster commonly enjoyed raw or cooked as a delicacy
Lower right: Scallop showing off its many primitive eyes
Caribbean Reef Squid
Tentacles of a giant squid
Calamari: a deep fried squid dish
Squid eye and gills
Octopus on the beach
Octopus arm in detail
Starfish eating (digesting) a mussel
The largest squid ever caught was a 10 m long ColossalSquid off the coast of New Zealand and weighed in at 495 kg. Colossal Squid are larger than the giant squid found off the Mexican coast and are thought to grow in size to a whopping 13 meters!