|
|
Portrait of Pompholyxophrys ovuligera, one of the heliozoon-like amoebae previously assigned to the order Rotosphaerida. Pompholyxophrys has a periplast composed of endogenously formed siliceous elements of a single type within a species. These are spherical in the type species P. punicea but may be ovoid (as seen here), discoid or bone-shaped. Radiating spicules are absent. A detached (American) football-shaped scale is seen on your right in this image. What appear at first glance to be axopodia are, in fact, filopods protruding between the periplast scales. The filopods lack axonemes and extrusomes. Contracted filopodia may appear granular leading to confusion but close examination of the extended filopodia shows extrusomes are absent. This individual has been feeding on algae and diatoms. From standing freshwater near Boise, Idaho |
There are no previous comments for this asset
Login to post a comment!
|
|
