The record in chromosome number in animals is hold by the freshwater crayfish Pacifastacus leniusculus trowbridgii with a diploid set of 376 chromosomes, corresponding to a chromosome number of 188 in the gametes (Niiyama, 1962). The second highest chromosome number was recently found in the triploid crayfish Procambarus virginalis (3n=276) (Martin et al., 2015). ... It reproduces by apomictic parthenogenesis, i. e. without meiosis, and therefore, the eggs should include 276 chromosomes as well, making Procambarus virginalis the new animal world record holder with respect to chromosome number of gametes.
Still, common parlance calls the Marmorkrebs egg... well... an egg. And eggs are gametes.
As so often happens, life overflows the dikes erected by the schools. – Mario Bunge, Intuition and Science
Still, the high chromosome numbers of these crayfish species are fascinating, quibbles over categories notwithstanding.
Vogt G. 2015. Structural specialities, curiosities and record-breaking features of crustacean reproduction. bioRxiv.