Crayfish
Astacidea
33.0852, -97.0687
Field Notes
Description:
The upper part of the greenbelt has a natural stream that becomes a concrete trickle trough at its lower end. There had been some very heavy rains and minor flooding along its course, and this crayfish apparently got washed downstream in the flooding.
Habitat:
Trickle trough through greenbelt.
Notes:
Crayfish, also called crawfish or crawdad, are closely related to the lobster. More than half of the more than 500 species occur in North America, particularly Kentucky (Mammoth Cave) and Louisiana in the Mississippi basin. Crayfish also live in Europe, New Zealand, East Asia and throughout the world, including the Tristan da Cunha Islands. Nearly all live in freshwater, although a few survive in salt water. Crayfish are characterised by a joined head and thorax, or midsection, and a segmented body, which is sandy yellow, green, or dark brown in colour. The head has a sharp snout, and the eyes are on movable stalks. Crayfish are usually about 7.5 cm (3 inches) long.
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