The shrimps and their allies are distinguished from the larger Macrura, such as the lobsters and crayfishes, by greater development of the paddle-like limbs of the abdomen or tail, which are used in swimming. [Please select]
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Some of the living crayfishes should be established in conditions as natural as possible _i. [Please select]
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Small crayfishes are desirable to show locomotion in water. [Please select]
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For what different purposes have you seen the crayfishes use their large claws. [Please select]
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Early in the spring crayfishes may be found carrying eggs or young. [Please select]
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How does it compare in size with other crayfishes in the laboratory. [Please select]
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Explain the fact that crayfishes are often found alive and well with a soft shell. [Please select]
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