Revision of the egg morphology of Eulimnadia (Crustacea, Branchiopoda, Spinicaudata) Author Rabet, Nicolas Université Pierre et Marie Curie, Paris 6, UMR 7138, Systématique, Adaptation, Évolution, CNRS UPMC MNHN IRD, case 05, 7 quai St Bernard, F- 75005 Paris (France) nicolas. rabet @ upmc. fr rabet@upmc.fr text Zoosystema 2010 2010-09-30 32 3 373 391 http://www.bioone.org/doi/abs/10.5252/z2010n3a1 journal article 8095 10.5252/z2010n3a1 8f1c0fde-2086-43a6-bd59-d462151b5f02 1638-9387 4521152 Eulimnadia mauritiana ( Guérin, 1837 ) ( Fig 3 D-I; 4A-C) Limnadia mauritiana Guérin, 1837: 5 , tab. 21, figs 1-11. — Simon 1886: 456 , pl. 7, fig. 2. — Brtek 1997: 57 . Eulimnadia mauritiana – Daday de Deés 1926: 535 , fig.133. TYPE LOCALITY . — Mauritius Island . MATERIAL EXAMINED. — Mauritius . “Île de France” with no further information (first French name of Mauritius Island), Desjardins,> 100 eggs (MNHN-Bp332);> 100 eggs (MNHN-Bp333);> 100 eggs (MNHN-Bp334). RANGE . — This species is known from the type locality only. EGG MORPHOLOGY Numerous eggs are present under the carapace and in the bottom of the bottle.Twisted eggs with cluster of lobed, rounded, wide ridges, delimiting narrow furrows. Ridge intersections of different clusters bearing prominent rounded projections. The egg external wall is abundantly and homogeneously spongy ( Fig. 4D, E ). Average matureegg maximum length (lobe to lobe) is 221.6 µm (n = 5, SD = 19.4 µm ). REMARKS Daday de Deés (1926) description “Ova breviter fusiformes, forma structuraque membranae speciei Limnadia lenticularis (L.) similibus” is compatible with our results. This is the first described species in the genus Eulimnadia . Its egg morphology is unique to Eulimnadia , though Eulimnadia astraova Belk, 1989 eggs have some similarities but the projections are larger and conical.