Figure 3.

Egg masses of introduced and native Pomacea in the continental U.S. a. P. haustrum, b. P. diffusa, c. P. canaliculata, d. P. paludosa, e. P. insularum. Scale Bar:5 cm.

Rawlings et al. BMC Evolutionary Biology 2007 7:97   doi:10.1186/1471-2148-7-97
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