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 1880. BELL, Rep. Geol. & Nat. Hist. Surv. Canada, 1879-80, p. 75 c, 1881. 

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Limn&us catascopium KUSTER, Conch. Cab., I, p. 46, taf. 8, figs. 15-21, 1862. 



Limnophysa catascopium BECK, Index Moll., p. Ill, 1837. MORSE, Journ. 

 Bost. Soc. N. H., I, p. 42, 1864. TRYON, Amer. Journ. Conch., I, p. 253, 1865. 

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 Amer. Nat., XXXV, p. 659, 1901. KEEP, West Amer. Sh., p. 314, 1904 (part). 



Limncea elodes var. catascopium ALDRICH, Rep. N. Y. State Cab. N. H., 

 XXII, pp. 19, 23, 1868. 



Helix catascopium EATON, Text-book, p. 195, 1826. 



