Vermes : three new species of worms belonging to the order Echinodera /
Blake, Charles H.
Vermes : three new species of worms belonging to the order Echinodera / Charles H. Blake. - Philadelphia : The Wistar Institute of Anatomy and Biology, 1930. - 10 p. : ill. ; 26 cm. - Biological survey of the Mount Desert Region / conducted by William Proctor. .
Vermes : three new species of worms belonging to the order Echinodera / Charles H. Blake. - Philadelphia : The Wistar Institute of Anatomy and Biology, 1930. - 10 p. : ill. ; 26 cm. - Biological survey of the Mount Desert Region / conducted by William Proctor. .