Weimer, B. R. (1918). Thigmotatic Reactions of the Fresh Water Turbellarian, Phagocata gracilis, Leidy. Transactions of the American Microscopical Society,, 37: 111-124, plate 11.
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Weimer, B. R.
1918
Thigmotatic Reactions of the Fresh Water Turbellarian, Phagocata gracilis, Leidy.
Transactions of the American Microscopical Society,