Corpus ID: 26184391

Studies on the Embryology of Pycnopodia helianthoides (Brandt) Stimpson

  title={Studies on the Embryology of Pycnopodia helianthoides (Brandt) Stimpson},
  author={D. Greer},
THE EMBRYONIC DEVELOPMENT of Pycnopodia helianthoides, the 20-rayed sea star, which has a small egg (120j-t), an indirect form of development, and larval metamorphosis, has not been previously reported in detail. Mortensen (1921) was able to rear only the early gastrula. No other references to the development of Pycnopodia have been found. Species of other multi-rayed sea stars with a yolky egg (and in consequence a more direct form of development) are much better known, e.g., Solaster endeca… Expand

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On the Number of Rays in Starfish1
On the Number of Rays in Starfish


Studies of the Development and Larval Forms of Echinoderms
The development of the starfish Solaster Endeca Forbes.
Preliminary observations on the development of Leptasterias hexactis
  • Publ. Puget Sound BioI. Sta
  • 1918
Multiplication of rays and bilateral symmetry in the 20-rayed star-fish, Pycnopodia helianthoides
  • 1900