*Department of Zoology, School of Biological Sciences, University of Leicester, Leicester, England.
The embryonic development of the Mediterranean freshwater crab, Potamon edulis (=P.fluviatile) (Crustacea, Decapoda, Potamonidae)
Article first published online: 20 AUG 2009
Journal of Zoology
Volume 180, Issue 1, pages 93–106, September 1976
How to Cite
Pace, F., Harris, R. R. and Jaccarini, V. (1976), The embryonic development of the Mediterranean freshwater crab, Potamon edulis (=P.fluviatile) (Crustacea, Decapoda, Potamonidae). Journal of Zoology, 180: 93–106. doi: 10.1111/j.1469-7998.1976.tb04666.x
- Issue published online: 20 AUG 2009
- Article first published online: 20 AUG 2009
- Accepted 9 March 1976
The mating of the crabs is described. The incubation period of the macrolecithal egg of the freshwater crab, Potamon edulis (Latr.) is 46 ± 1 days long. One of the main features of the development of the egg is its extreme abbreviation. In addition to the nauplius, metanauplius, and zoea, the megalopa stage is also imprisoned in the egg. The extent to which direct development is carried in Potamon is unique among the Brachyura. This is considered to have been a pre-adaptation to the colonization of a freshwater habitat by the Potamonidae.