On a crinoid with movable spines
By: By Henry S. Williams. (Read before the American philosophical society, April 20, 1883.)
Series: Geological pamphlets. Paleontology -- 951; Geological pamphlets -- 951
Published: 1883
Place of publication: Philadelphia
Language: eng
Number of pages: 88
Subjects: Fossil Crinoidea
Notes: Capton title.

Reprinted from Proceedings of the American philosophical society, vol.xxi.