SCIENCE 1100 CU 3

NAME:

Head-foot mollusks; octopuses, squids, nautiluses, Argonauts, cuttlefish, and spirula.

A cephalopod appendage; lined with suckers

• Arm
• Spirula
• Nautilus
• Squid

Cephalopod appendage; suckers only at its tip or no suckers.

Epithelial cells; contain sacs of pigments and sacs of reflective particles; enable a cephalopod to change its skin color.

• Spirula
• Nautilus
• Chromatophores
• Arm

Cephalopod; up to 90 tentacles; true external shell

• Chormatophores
• Nautilus
• Spirula
• Arm

Cephalopod; 8 arms, 2 tentacles; chambered internal shell

Cephalopod; 8 arms, 2 tentacles; internal structure resembling a long, flat bone made of calcium carbonate.

• Spirula
• Cuttlefish
• Nautilus
• Chromatophores

Cepholopod; 8 arms, 2 tentacles; internal, leaf-shaped shell structure called a pen.

• Nautilus
• Cuttlefish
• Squid
• Spirula

Cephalopod; 8 arms, no shell

• Squid
• Cuttlefish
• Octopus
• Funnel