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A Review of the North American Freshwater Snail Genus Pyrgulopsis

A Review of the North American Freshwater Snail Genus Pyrgulopsis

A Review of the North American Freshwater Snail Genus Pyrgulopsis

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NUMBER 554<br />

FIGURE 48.—Penes <strong>of</strong> western <strong>Pyrgulopsis</strong>: a, P. manantiali, ANSP A98881; b, P. merriam, USNM 873395; c.<br />

P. metcalfi, USNM 873301; d, P. micrococcus. USNM 850297; e, P. montezumensis, USNM 847233. (Bar =<br />

0.5 mm.)<br />

105

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