Crinoidea flexibilia (with an atlas of A. B. C. and 76 plates)
By: by Frank Springer
Publisher: Smithsonian Institution
Published: 1920
Place of publication: City of Washington
Language: eng
Number of pages: 486
Subjects: Crinoidea
Notes: At head of title: Smithsonian Institution

"Publication 2501."

Includes indexes

Bibliography: v. [1], p. 455-466