| In that species, algal endosymbionts occur in both the mantle and gills. |
| For example, bacterial endosymbionts as found in the giant vent Pogonophora are also present in many meiofaunal oligochaetes, nematodes and flatworms. |
| Several species of asexual endosymbionts have experienced accelerated rates of molecular evolution relative to their free-living relatives. |
| Our goal is to discover how extensive similar endosymbionts are in local ciliates. |
| Some species are endosymbionts of marine animals and play an important part in the biology of coral reefs. |
