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Free Content Post-Larval Growth in Two Species of Dissodactylus (Brachyura: Pinnotheridae)

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No life history information has been available for any species of the symbiotic crabs, Dissodactylus. Studies on post-larval growth of D. crinitichelis and D. primitivus show that in both species the carapace increases in size without appreciable change in shape. The estimated number of post-larval instars for D. crinitichelis is 12–13; for D. primitivus no estimate was possible. In both species the width of the abdomen of males is related linearly to the carapace length. In females this relationship is in the form of a power curve. The females of both species show an abrupt increase in the width of the abdomen at the presumptive pubertal molt. In D. crinitichelis this is probably the ninth or tenth molt in post-larval life. The species D. primitivus Bouvier 1917 is shown to be an earlier synonym of D. borradailei Rathbun 1918.

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Document Type: Research Article

Publication date: 1978-10-01

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  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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