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Cyclograpsus punctatus.
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Cambarus cornutus Fax. Male form I. Green River, Ky.. Side view of head
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Two species of Caprellidae. A, Phtisica marina, a species which retains the fourth and fifth pairs of thoracic limbs (prp', prp'); B, Caprella linearis, in which these limbs are represented only by the gills (br)
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Diptychus nitidus, d'apres Milne-Edwards et Bouvier.
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Callinectes Sapidus. Three Successive Stages of the Molting of One Individual of Callinectes Sapidus
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Pachygrapsus gracilis.
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Anderson's Blanket-Crab. Chlaenopagurus andersoni, with its protective planket of sea-anemones. This large hermit-crab, which was discovered by Dr. A. R. S. Anderson off the Malabar coast, living at a depth of 102 fathoms, does not at any time of life use a shell as a refuge, but is always accompanied by a particular species of sea-anemones
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Hippa talpoida.
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Atya scabra, a fresh-water prawn of the family Atvidae, West Indies.
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Cambarus Cubensis Erichs. Male, form I. Havana, Cuba.
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River Crab of Southern Europe, Potamon edule (or Telphusa fluviatilis).
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Platychirograpsus typicus.
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Callinectes Sapidus. Further Stages of the Molting of Callinectes Sapidus
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Pachygrapsus gracilis.
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Sesarma (Sesarma) Verleyi.
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Sandbug. Southern shore of Long Island.
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Hyas araneus.
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Cambarus forceeps Fax. Male, form I. Lauderdale Co., Ala..
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Cyclograpsus cinereus.
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Platychirograpsus typicus, male (19803), Dorsaw view.
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Callinectes sapidus, the blue crab.
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Pinnotheres serrei.
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Sesarma (Sesarma) rhizophorae.
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Sand Bug or Bait Bug, Hippa talpoida, Say.