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  Crustacean Mousepads and Gifts

There are 40 gift matches for 'Crustacean'.
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Lobster Mousepad
Lobster
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Hermit crab Mousepad
Hermit crab
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Crab Mousepad
Crab
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Sally Lightfoot Crab Mousepad
Sally Lightfoot Crab
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Caribbean Spiny Lobster Mousepad
Caribbean Spiny Lobster
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Sally Lightfoot Crab Mousepad
Sally Lightfoot Crab
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Shrimp Mousepad
Shrimp: Shrimp Closeup.
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Spiny Lobster Mousepad
Spiny Lobster: Anacapa Island
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Sally Lightfoot Crab Mousepad
Sally Lightfoot Crab
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Coonstripe Shrimp Mousepad
Coonstripe Shrimp: Puget Sound
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Caribbean Spiny Lobster Mousepad
Caribbean Spiny Lobster
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Crab Mousepad
Crab
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Hermit Crab Mousepad
Hermit Crab
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Crab Mousepad
Crab
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Squat lobster Mousepad
Squat lobster
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Shrimp Mousepad
Shrimp: Shrimp resides in a sea anemone
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Slipper lobster Mousepad
Slipper lobster: The slipper lobster
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Hermit crab Mousepad
Hermit crab: Colorful hermit crab
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Shrimp Mousepad
Shrimp: Shrimp On Rocks.
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Red Coral Crab Mousepad
Red Coral Crab: Red Coral Crab.
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Shrimp Mousepad
Shrimp: Shrimp W/ Anemone.
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Shrimp Mousepad
Shrimp: Shrimp Cleaning Coral.
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Shrimp Mousepad
Shrimp: Shrimp On Anemone.
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Shrimp Mousepad
Shrimp: Two Shrimp On Rock.
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Coral Crab Mousepad
Coral Crab: Coral Crab.
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Banded Coral Shrimp Mousepad
Banded Coral Shrimp
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Crab Mousepad
Crab
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Hermit Crab Mousepad
Hermit Crab: La Paz, Mexico
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Porcelain Crab Mousepad
Porcelain Crab: Porcelain Crab on Brain Coral
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Procelain Crab Mousepad
Procelain Crab: On Brain Coral
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Photos on Canvas

More About Crustaceans ...
The crustaceans (Crustacea) are a large group of arthropods (55,000 species), usually treated as a subphylum. They include various familiar animals, such as lobsters, crabs, shrimp and barnacles. They are variously found in marine and freshwater, with a few terrestrial members (such as woodlice).

Crustaceans have 3 distinct body parts: head, thorax, and abdomen. They have two pairs of antennae on the head, compound eyes, three pairs of mouthparts and a telson. Smaller crustaceans respire through their body surface by diffusion and larger crustaceans respire with gills. Crustaceans typically have a thick carapace on the dorsal side of their body. Their appendages are typically biramous, including the second pair of antennae (but not the first).

Most crustaceans have separate sexes and are distinguished by appendages on the abdomen called swimmerets. The first (and sometimes the second) pair of swimmerets are larger on the male than on the female. Terrestrial crabs mate seasonally and return to the sea to breed. Female crabs' eggs are retained by the females until they hatch. The eggs hatch into free-swimming larvae.

Although crustaceans are rarer as fossils than trilobites are, a number of different types of crustaceans are common in the rocks of the Cretaceous period as well as those of the Caenozoic era. Most of the smaller crustaceans, such as shrimp, have an exoskeleton which is somewhat delicate and for this reason their fossil record is incomplete. However, crustaceans such as crabs and lobsters have a thicker exoskeleton which is reinforced with calcium carbonate and so their fossil record is much better. The fossil record of barnacles is scarce and little is known of their history prior to the Mesozoic era. Well preserved specimens are known from the rocks of the Cretaceous period and the Caenozoic era.

The most well known crustaceans, the malacostraca (crabs, lobsters, crayfish, shrimp), although widespread today are only found sporadically as fossils. Most of the known fossil crabs are of forms which lived on the sea-floor or in a reef environment. In rocks such as the Gault clay from the Cretaceous period and the London clay from the Eocene period in England fossil crabs may be found. The 'Lobster Bed' of the Greensand formation from the Cretaceous period which occurs at Atherfield on the Isle of Wight in England contains many well preserved examples of the small lobster Mecochirus magna. The lithographic limestones from the Jurassic period of Solnhofen in Germany have long been famed for the many exceptionally preserved crabs, lobsters and shrimp fossils they have yielded (such as Aeger, Eryon, and Pseudastacus).
Source: Wikipedia Read more about Crustaceans

 
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