... Multiplication of rays and bilateral symmetry in the 20-rayed star-fish
Subtitle: Pycnopodia helianthoides (Stimpson).
By: By Wm. E. Ritter and Gulielma R. Crocker...
Contributors: Crocker, Guilelma R., joint author.
Series: (Papers from the Harriman Alaskan expedition. 111)
Publisher: The Academy
Published: 1900
Place of publication: Washington, D.C
Language: eng
Number of pages: 274
Subjects: Starfishes.
Notes: Bibliography: p. 269-270.
At head of title: Proceedings of the Washington academy of sciences. vol. 11. p. 247-274...