Laboratory-reared larvae of Cancer anthonyi (Decapoda: Brachyura) with a brief description of the internal anatomy of the megalopa |
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Authors: | T. Trask |
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Affiliation: | 1. Marine Science Center, Oregon State University, Newport, Oregon, USA 2. Department of Biological Sciences, Central Washington State College, Ellensburg, Washington 98926, USA
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Abstract: | The larval development of Cancer anthonyi Rathbun (Decapoda, Brachyura) is described from laboratory rearing experiments. The external anatomy of the various larval stages is illustrated. A prezoeal stage, 5 zoeal stages and 1 megalopa stage were identified. At 17.5°C it took an average of 32.5 days for the first-stage zoeae to develop through the fifth zoeal stage and molt to the megalopa stage. The general internal anatomy of C. anthonyi larvae is discussed, and a drawing of a parasagittal section of a megalopa-stage larva is included. |
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