Figure 2.

Single-egged ephippial females of Daphnia and Simocephalus. a-b. Daphnia (Ctenodaphnia) pusilla, general view of ephippial female and ephippium. c. Simocephalus exspinosus, ephippial female. d. Simocephalus vetulus, ephippium. Scales: 1 mm for a, c; 0.1 mm for b, d.

Kotov and Taylor BMC Evolutionary Biology 2011 11:129   doi:10.1186/1471-2148-11-129
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