How To Use Malacostraca In A Sentence
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Neuroblasts in many malacostracan crustaceans arise and behave differently from their counterparts in Drosophila.
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Eumalacostraca is the group that contains most of the animals the general public recognize as crustaceans, such as shrimp, crabs, lobsters.
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Decapoda (crabs, lobsters, and shrimps) is the most speciose group within the Malacostraca.
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Both the fishing and farming of malacostracans can be environmentally damaging.
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Most metamorphosing malacostracans have a nauplius larva, but in many species eggs hatch into zoea larvae.
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While the fossil records of the Mysida and Lophopgastrida are among the best known of the malacostracan Crustacea, fossil representatives of these groups are still relatively rare.
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Several malacostracan species are important in aquaculture and food industries.
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Eumalacostraca is the group that contains most of the animals the general public recognize as crustaceans, such as shrimp, crabs, lobsters.
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Classical eyestalk ablation experiments have demonstrated that malacostracan reproduction is under sinus gland control.
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Thus Fritz Müller has made the remarkable discovery that certain shrimp-like crustaceans (allied to Penus) first appear under the simple nauplius-form, and after passing through two or more zoea-stages, and then through the mysis-stage, finally acquire their mature structure: now in the whole great malacostracan order, to which these crustaceans belong, no other member is as yet known to be first developed under the nauplius-form, though many appear as zoeas; nevertheless Müller assigns reasons for his belief, that if there had been no suppression of development, all these crustaceans would have appeared as nauplii.
XIV. Mutual Affinities of Organic Beings: Morphology-Embryology-Rudimentary Organs. Development and Embryology
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In a study of 47 species of malacostracan arthropods, Becker found that most of the taxa were not heavily fouled.
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On the whole the maxillopodan groups Ostracoda and Cirripedia and the Malacostraca have left the most significant fossil records.
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The mouth of malacostracans leads to a two-chambered stomach, which possesses a grinding structure called the gastric mill.
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Therefore, the homology of entomostracan and malacostracan neuronal stem cells remains uncertain.
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The complete sequence of the mitochondrial genome of the giant tiger prawn, Penaeus monodon (Arthropoda, Crustacea, Malacostraca), is presented.
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Malacostracans exhibit the hard, calcified exoskeleton typical of crustaceans.
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Hemocyanins have been studied thoroughly only in the Chelicerata and the malacostracan Crustacea, but they have been identified in all arthropod subphyla, including the Myriapoda and Hexapoda.
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Thus Fritz Müller has made the remarkable discovery that certain shrimp-like crustaceans (allied to Penus) first appear under the simple nauplius-form, and after passing through two or more zoea-stages, and then through the mysis-stage, finally acquire their mature structure: now in the whole great malacostracan order, to which these crustaceans belong, no other member is as yet known to be first developed under the nauplius-form, though many appear as zoeas; nevertheless Müller assigns reasons for his belief, that if there had been no suppression of development, all these crustaceans would have appeared as nauplii.
XIV. Mutual Affinities of Organic Beings: Morphology-Embryology-Rudimentary Organs. Development and Embryology
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Shifts between aquatic and terrestrial habitats were likely promoted by the availability of malacostracans in both terrestrial and aquatic habitats.
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Most metamorphosing malacostracans have a nauplius larva, but in many species eggs hatch into zoea larvae.
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_Peneus_ with its long direct development gave the best and truest picture of the ancestral history of the Malacostraca, and that accordingly the nauplius and the zoaea larvæ represented important ancestral stages.
Form and Function A Contribution to the History of Animal Morphology
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Malacostracans play such an important role in aquatic ecosystems that their conservation is an important issue.
