*This work was supported by an International Exchange Research Scholarship from the Ministry of Education, Science and Culture, Japan.
Oozooid development and budding in the polyclinid ascidian, Parascidia flemingii (Urochordata)*
Article first published online: 20 AUG 2009
1986 The Zoological Society of London
Journal of Zoology
Volume 208, Issue 2, pages 255–267, February 1986
How to Cite
Nakauchi, M. (1986), Oozooid development and budding in the polyclinid ascidian, Parascidia flemingii (Urochordata). Journal of Zoology, 208: 255–267. doi: 10.1111/j.1469-7998.1986.tb01512.x
- Issue published online: 20 AUG 2009
- Article first published online: 20 AUG 2009
- Accepted 9 April 1985
The life history of the polyclinid ascidian, Parascidia flemingii was studied in the laboratory from its larval stage to the blastozooid stage. This species is like Circinalium concrescens (Sidnyum turbinatum?) in its external appearance. The present study showed, however, that they were different from each other in 1) larval size, 2) larval activity, 3) spot formation in the adult, and 4) mode of budding. Budding of oozooids occurred 19–32 days after metamorphosis, and 2–8 strobilae were formed in the abdomen and postabdomen. Mother zooids have four stigmata1 rows and two atrial languets, blastozooids having 5–8 stigmata1 rows and a simple languet.