37.29.00=Glaciology 38.31.00=Paleontology 38.59.00=Technique and technology of exploration works 41.19.00=Solar System Paleontology abdomen abdominal limb adult agile crawler amphionides reynaudii animal animal life antenna appendage aquatic farm barnacle beaklike projection behavior behavior reproduction beneath stand biology biramous by-ray-mus blood bodily fluid body books books blaxland books bliss books brusca books schram breeding season british isles brittle star brusca invertebrates burrow calcified crust calcium carbonate carapace caspian seas central column characteristic chitin kye-tehn cilium sih-lee-uh clam clam shrimps class common octopus completely enclosed complex behavior conservation conservation status considered considered endangered crabs shrimps crayfish critically endangered crustacea crustacean crustlike growth daily cycle data deficient daytime heat dead snail deep-sea geyser diet dolphin porpoise dry season eat effort egg endangered external skeleton eye fairy shrimp family feed feeding habit female field guide filter feeder fish fished commercially food foot foot meter form functional limb functional morphology galpagos islands geographic geographic range giant good swimmer great lakes greatly reduced group growth rate grzimek habitat head hermaphrodite her-mae-fro-daits host hydrothermal vent illustration inch inch millimeter individual infective stage inky fluid inland waterway invertebrate in-ver-teh-brehts invertebrates kidneylike organ larva larval stage lazarev seas leg length life life resource limb live living long louse major river male male female mantis shrimp mantle march marine marine ectoprocts marine freshwater mate mating medical treatment meter mile kilometer millimeter mississippi river molt mouth mouthpart mussel national geographic native americans natural history north america nova scotia ocean octopus octopus worm order organ organism pacific northwest pair peanut worms people periodicals permission pheromone feh-re-moans philosophical transactions phylum physical physical characteristic plant pound kilogram range raptorial limb red red swamp reef created reproduce reproduced reproduced permission reproduction resource rice field river bank rock royal society salty sand sea segment sensory organ shaped shell shrimp simple sugar site snail south america special special gland special structure specie species sperm stage status structure student student animal surface swamp swamp crayfish swim swimming table mountain tadpole shrimp thoracic threatened tightly joined time tongue tongue worm tree canopy tube tun stage upper portion valve veiled chiton veligers vel-ih-jerz water worm worms www danceweb year york york alfred young