Obelia vs Aurila - What's the difference?
obelia | aurila |
(zoology) Any of various colonial marine hydroids of the genus .
* 1970 , Marie M. Jenkins, Animals Without Parents ,
* 1975 , ,
* 1999 , Martin Walters, Jinny Johnson, The World of Animals , 2011,
obelia
Noun
(en noun)page 55,
- All the polyps and branches of obelias are supported and protected by a thin, transparent, horny covering which is made by the outer layer of cells. About each polyp the horny covering is in the shape of a goblet or cup.
page 42,
- Fragile but menacing, obelias''' are colonies ranging from one to eight inches in length which grow on seaweeds, rocks, and piles. The medusa, only one stage in the '''obelia’s life cycle, has anywhere from eight to 24 tentacles, .
page 31,
- .