Post-Larval Growth in Two Species of Dissodactylus (Brachyura: Pinnotheridae)
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.
No Supplementary Data.
Document Type: Research Article
Publication date: 1978-10-01
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