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Common Hermit-Crab, Eupagurus henhardus, in the shell of a whelk.
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Tetragrapsus jouyi.
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Sesarma (Holometopus) cinereum.
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Phyllosoma larva of the common spiny lobster (Palinurus vulgaris).
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Cambarus hamulatus Fax. Male, form II. Nickajack Cave, Tenn..
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Oyster Crab, Pinnotheres ostreum, Sale; male.
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Cymopolia isthmia.
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Hepatus guttatus (Bloch & Schneider); after Gunther.
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Coelopus brachyurus Gosse. Side view of specimen with head extended.
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Sesarma (Holometopus) miersii.
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Common Spiny Lobster (Palinurus vulgaris).
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Cambarus Harrisonii Fax. Male, form I. Irondale, Mo..
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Oediplax granulata.
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Cymopolia lucasii.
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Hepatus olivaccus.
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Coelopus porcellus Gosse. Ventral view of lorica, showing the two teeth at the anterior margin and the six styles of the foot.
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Sesarma (Holometopus) miersii iheringi.
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Palinurus vulgaris. a, left outward jaw-foot.
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Cambarus Hayi Fax. Male form I. Eastern Mississippi.
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Cyphocaris Richardi Chevreux.
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Cymopolia lucasii, Male Holotype, Dorsal view.
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Hepatus unbra (Jenkins).
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Coelopus porcellus Gosse. Side view of retracted animal.
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Sesarma (Holometopus) magdalenense.