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
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
96<br />
SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY<br />
FIGURE 39.—Central radular teeth <strong>of</strong> western <strong>Pyrgulopsis</strong>: a, P. pilsbryana, USNM 858279 (bar = 13.6 nm); b,<br />
P. pisteri, USNM 850364 (bar = 20.0 jun); c, P. robusta, USNM 874185 (scale as in b); d, P. roswellensis,<br />
USNM 873132 (bar = 12.0 \un); e, P. simplex, USNM 847236 (scale as in d);f, P. sola, USNM 850290 (bar =<br />
7.5 Jim).