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Zoological Studies
Figure 2 | Zoological Studies

Figure 2

From: Genetic, morphological, and life history traits variation in freshwater snails from extremely high environments of the Andean Altiplano

Figure 2

External shell morphology of Biomphalaria showing the 11 linear variables measured in this study. (A) Right side, (B) ventral side, and (C) left side. 1 Shell length, 2 shell height, 3 length of anterior extreme to the umbo, 4 peristome length, 5 peristome width, 6 ventral shell length, 7 length of peristomal callus, 8 ventral shell width, 9 anterior length of last whorl, 10 posterior length of last whorl, 11 length of posterior extreme to the umbo.

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