Mollusks Page 3 - Coral Reef Life on sea and Sky

Mollusks

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Atlantic Squid
(Lolliguncula brevis)

The squid is another member of the mollusk family that has lost its hard shell. Like the octopus, squid have suction cups on their arms that aid in capturing their prey. They feed on fish and crustaceans. This common squid species is found throughout the Atlantic United States coast and grows to a length of 5 inches.

Cuttlefish
(Sepia officinalis)

Cuttlefish are very closely related to squid. One noticeable difference is that the cuttlefish has noticeably shorter tentacles. These animals also have specialized tentacles that can shoot out quickly to catch their prey. Cuttlefish are masters of disguise. They can change colors in an instant, and have actually been observed to use flashing colors as a means of communication.

Chambered Nautilus
(Nautilus macromphalus)

For many years the nautilus was thought to be a rare deep water species, but recently they have been discovered in large numbers on Indo-Pacific coral reefs. They are nocturnal animals, swimming around the reef at night in search of small fish and shrimp. Their unique shells are highly prized by shell collectors.

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