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crayfish

(Encyclopedia) crayfish or crawfish, freshwater crustacean smaller than but structurally very similar to its marine relative the lobster , and found in ponds and…

crawfish

(Encyclopedia) crawfish: see crayfish .

carapace

(Encyclopedia) carapace kâr´əpās [key], shield, or shell covering, found over all or part of the anterior dorsal portion of an animal. In lobsters, shrimps, crayfish, and crabs, the…

Port Lavaca

(Encyclopedia) Port Lavaca ləvăk´ə [key], city (1990 pop. 10,886), seat of Calhoun co., S Tex., on Lavaca Bay; inc. 1907. A deepwater port of entry, it is a shipping point for an…

decapod

(Encyclopedia) decapod dĕk´əpŏd˝ [key] (Gr.,=10 feet), name for invertebrate animals of the crustacean order Decapoda (phylum Arthropoda ) including the crabs, the…

Réaumur, René Antoine Ferchault de

(Encyclopedia) Réaumur, René Antoine Ferchault de rā´əmyo͝or, Fr. rənā´ äNtwän´ fĕrshō´ də rāōmür´ [key], 1683–1757, French physicist and naturalist. He invented an alcohol thermometer

raccoon

(Encyclopedia) raccoon, nocturnal New World mammal of the genus Procyon. The common raccoon of North America, Procyon lotor, also called coon, is found from S Canada to…

crustacean

(Encyclopedia) crustacean krŭstā´shən [key], primarily aquatic arthropod of the subphylum Crustacea. Most of the 44,000 crustacean species are marine, but there are many freshwater…

isopod

(Encyclopedia) isopod ī´səpŏd˝ [key], common name for crustaceans belonging to the order Isopoda and in the same subclass as lobsters and crayfish. Isopods are characterized by their…

mud puppy

(Encyclopedia) mud puppy, common name for North American salamanders of the genus Necturus, found in rivers and streams throughout the E United States and SE Canada. The…