Literature references
1 literature reference for Freyella heroina Sladen, 1889:
| Author: | Sladen, W.P. |
|---|---|
| Year: | 1889 |
| Title: | Report on the Asteroidea. Report on the Scientific Results of the Voyage of H.M.S. Challenger during the years 1873-1876, Zoology 30(51): xlii + 893 pages 118 plates. |