Different egg-associated and larval development characteristics ofMacrobrachium jelskiiandMacrobrachium amazonicum(Arthropoda: Crustacea) in a Venezuelan continental lagoon

Summary In Venezuela, M. jelskii and M. amazonicum are both found living in fresh waters and sometimes share the same habitat. The respective patterns of development of the two species have been compared, with reference to such parameters as egg size and number, duration and number of larval stages, and body length of the first zoea. Development of M. jelskii exhibits features characteristic of fresh water species, whereas that of M. amazonicum has features usually associated with brackish water species.