Study Handout Sheet

Jack Miars

Zeev Foster

Michael Mann

Mollusk Study Handout

What does Mollusk mean?_______________________________

Major Classes

1. _______________________
2. _______________________
3. _______________________

Nervous System - ________________________________________________________________________________________________________________________________________________

Reproduction –

________________________________________________________________________________________________________________________________________________

Digestion –

________________________________________________________________________________________________________________________________________________

Circulation –

________________________________________________________________________________________________________________________________________________

Gas Exchange –

________________________________________________________________________________________________________________________________________________

Excretion of Waste –

________________________________________________________________________________________________________________________________________________

Symmetry –

________________________________________________________________________________________________________________________________________________

Coelom Type –

________________________________________________________________________________________________________________________________________________

Major Structures –

________________________________________________________________________________________________________________________________________________

Dissection (What is labeled and what does it so?)

1. _______________________
2. _______________________
3. _______________________
4. _______________________
5. _______________________
6. _______________________

Major Species (Name it and write one fact about it)

1. _______________________
1. ________________________________________________________

      2. ________________________

                  b. _________________________________________________________

      3. ________________________

                  c. _________________________________________________________

On our Cart...

• Sea Slug (Dendronotus)
• Land Snail (Helix)
• Zebra Mussels (Dreissena)
• Clam (Anodota)
• Chiton (Katherina)
• Limpet (Patellogastropoda)
• Squid (Loligo)

Major Mollusk Classes

1. GASTROPODA - Snails and Slugs

2. BIVALVES - Clams

3. CEPHALOPODS - Octopus and Squids

Presentation File

http://prezi.com/gqhwk1_kl1dp/mollusks/

VIDEOS!!!

Disection

 The First picture is a far distance shot at how big our squid was to the human hand.

 This picture shows the mantle which is the large spotted structure and also the eye which is the small black dot to the right of the arms.
 This show the clear picture of the suckers which are on the arms but also the bade of the tentacles.

This is a close of picture of the removed beak.

3 Mollusk Species

Giant Squid (Architeuthis dux)

Maximum size at 13 meters (43 ft) for females and 10 meters (33 ft) for males

Giant squid are very widespread, occurring in all of the world's oceans

The inside surfaces of the arms and tentacles are lined with hundreds of sub-spherical suction cups, 2 to 5 centimeters (0.79 to 2.0 in) in diameter, each mounted on a stalk

They contain dark ink used to deter predators

Giant squid feed on deep-sea fish and other squid species. They catch prey using the two tentacles, gripping it with serrated sucker rings on the ends

http://images.nationalgeographic.com/wpf/media-live/photos/000/005/cache/giant-squid_544_600x450.jpg

Dumbo Octopus (Grimpoteuthis umbellata)

Living at extreme depths of 3,000 to 4,000 meters (9,800 to 13,000 ft), with some living up to 7,000 meters (23,000 ft) below sea level, which is the deepest of any known octopus.

They can flush the transparent layer of their skin at will, and are pelagic animals, as with all other cirrate octopuses

The largest Dumbo octopus ever recorded was 6 feet (1.8 m) in length and weighed 13 pounds (5.9 kg), although the normal size for the various species is thought to be smaller.

It is the only octopus that swallows its prey whole

They move by pulsing their arms, shooting water through their funnel, by waving their ear-like fins, or any combination thereof

http://en.wikipedia.org/wiki/File:Grimpoteuthis_discoveryi.jpg

Bigfin reef squid (Sepioteuthis lessoniana)

They are small to medium-sized squids, averaging 3.8 to 33 centimeters (1.5 to 13 in) in length

They are usually found 0 to 100 m (0 to 330 ft) below the water's surface

Bigfin reef squids exhibit strong positive phototactic behavior (attraction to light) and will move readily within a certain distance of a light source

Bigfin reef squids are one of the most commercially important squid species

Bigfin reef squids serve as hosts to the copepod ectoparasite Doridicola similis and the worm-like dicyemid endoparasites Dicyema koshidai and Dicyema orientale

http://upload.wikimedia.org/wikipedia/commons/d/d4/Squid_komodo.jpg