Houghton,M.A. (1867). Note on my former communication on a supposed new species of planarian worm. The Annals and magazine of natural history; zoology, botany, and geology. 3 ser. 20: 449.
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Houghton,M.A.
1867
Note on my former communication on a supposed new species of planarian worm.
The Annals and magazine of natural history; zoology, botany, and geology