decapod


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decapod

(dĕk`əpŏd') (Gr.,=10 feet), name for invertebrate animals of the crustaceancrustacean
, primarily aquatic arthropod of the subphylum Crustacea. Most of the 44,000 crustacean species are marine, but there are many freshwater forms. The few groups that inhabit terrestrial areas have not been particularly successful in an evolutionary sense; most require
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 order Decapoda (phylum ArthropodaArthropoda
[Gr.,=jointed feet], largest and most diverse animal phylum. The arthropods include crustaceans, insects, centipedes, millipedes, spiders, scorpions, and the extinct trilobites.
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) including the crabs, the lobsters and crayfish, and the true shrimps, all having five pairs of legs. The name Decapoda was also formerly applied to a very different group of animals, a cephalopodcephalopod
, member of the class Cephalopoda, the most highly organized group of mollusks (phylum Mollusca), and including the squids, octopuses, cuttlefish, and nautiluses. The class as a whole has become adapted for a free-swimming existence.
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 order including the cuttlefish and squids, characterized by two long and eight short tentacles. The cuttlefish are now classified in the order Sepioidea and the squids in the order Teuthoidea of the class Cephalopoda in the phylum MolluscaMollusca
, taxonomic name for the one of the largest phyla of invertebrate animals (Arthropoda is the largest) comprising more than 50,000 living mollusk species and about 35,000 fossil species dating back to the Cambrian period.
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decapod

1. any crustacean of the mostly marine order Decapoda, having five pairs of walking limbs: includes the crabs, lobsters, shrimps, prawns, and crayfish
2. any cephalopod mollusc of the order Decapoda, having a ring of eight short tentacles and two longer ones: includes the squids and cuttlefish
3. (of any other animal) having ten limbs
References in periodicals archive ?
This phenomenon is consistent with observations in other decapod crustacean species, including the mud crab Rhithropanopeus harrisii (Costlow et al.
The freshwater decapod crustaceans (Palaemonidae, Cambaridae) of the Savannah River Plant, South Carolina.
A new method to determine in situ growth rates of decapod shrimp: a case study with brown shrimp Crangon crangon.
Their broad shallow zones provide habitats for large numbers of macroinvertebrates (arthropods, polychaetes, mollusks, and others) and decapods, including blue crabs, Callinectes sapidus, and shrimp; juvenile and adult killifish and mummichogs, Fundulus spp.
The researchers found that in these tests, the decapod species that clearly look like crabs actually sit on five disparate branches of the crustacean evolutionary tree.
In decapod crustaceans, a neuropeptide molt-inhibiting hormone (MIH) suppresses ecdysteroids synthesis by Y-organs.
She's a stamp collector and I breed decapod crustaceans.
Customers are encouraged to contact Demayo or any member of the sales/rental team to discuss details of the DecaPod, PentaLight and DecaLight, as well as any other lighting needs from the Mole-Richardson full-service product line.
In decapod crustaceans, carapace color patterns are a result of hormonal control of chromatotropines (Rao, 1985), combined with external factors, such as food sources, substrate color, and seasonal and environmental variations (Rao, 1985; Bedini, 2002).