Several related flagellates, such as Perkinsus and Colpodella have structures similar to the polar ring and were formerly included here, but most appear to be closer relatives of the dinoflagellates.

The genus Perkinsus may belong to another clade-Perkinsozoa-based on a number of molecular biological findings.

These include free-living members in Oxyrrhis and Colponema, and parasites in Perkinsus, Parvilucifera, Rastrimonas and the ellobiopsids.

Perkinsus marinus is a prevalent pathogen of oysters, causing massive mortality in oyster populations.

This is similar to structures found among the Apicomplexa, and Perkinsus was previously classified with them.

If Perkinsus is a dinoflagellate, it is a basal one.

The type species of the genus is Perkinsus marinus.

The closest relation to Perkinsus is the genus Parvilucifera.

Perkinsus andrewsi appears to be the same species as Perkinsus chesapeaki.

If you'd get out of your back yard once in a while you might even get her your ownself ''.

I have more than once sat cross-legged in the grass through a long summer morning and watched without touching while a poppy bud higher than my head slowly but visibly pushed off its cap, unfolded, and shook out like a banner in the sun its flaming vermilion petals.

If in any one calculation Ptolemy had had to invoke 83 epicycles all at once, while Copernicus never required more than one third this number, then ( in the sense obvious to Margenau ) Ptolemaic astronomy would be simpler than Copernican.

When we went for our walks Lilly's brother would come along every once in a while.

We saw Giuseppe Berto at a party once in a while, tall, lean, nervous and handsome, and, in our opinion, the best novelist of them all except Pavese, and Pavese is dead.

He could no longer build anything, whether a private residence in his Pennsylvania county or a church in Brazil, without it being obvious that he had done it, and while here and there he was taken to task for again developing the same airy technique, they were such fanciful and sometimes even playful buildings that the public felt assured by its sense of recognition after a time, a quality of authentic uniqueness about them, which, once established by an artist as his private vision, is no longer disputable as to its other values.

The poet in a written tradition who generally never blots a line may once in a while pause and polish without incurring blame.

The false reasoning is that a gradual advance prolongs the pain while a swift powerful act gets it over with and leaves the girl pleased with his virility and grateful for his decisiveness in settling the problem once and for all.

He knew Vince Steiner was one of those men who had to work up a fury once in a while just to prove how dangerous he could be.

Read the moderately brief text, not for captions, sometimes for tart epigrams, once in a while for an explosion in the middle of your fixed ideas.

He shares with Mr. Morse a parody of the college anthems he once sang while his second song is whisked away from him by Virginia Martin, a girl with a remarkably expressive yip in her voice.

Only once in a very long while comes a book that gives the reader a magic sense of sharing a rare experience.

Willis listened patiently, and once in a while William was exposed to them at a family gathering ; ;

Engineers estimated that once the project is finished, the tunnel will allow 500 million cubic meters of water to be drawn from the lake annually, while maintaining a constant water level.

The other names are the Danaans (, Danaoi used 138 times in the Iliad ), Argives ( used 182 times in the Iliad ) while Hellenes (, Hellenes ) was used only once.

The noted Assyriologist Simo Parpola has speculated that it may even have once again been independent for a while prior to being sacked by Shapur I in 256 AD.

While they can be a human safety hazard, it is productive for these ecosystems to burn out every once in a while so that new organisms can begin to grow and thrive.

By 1902, however, due to the Governor of ` Akka being supportive of ` Abdu ' l-Bahá, the situation was greatly eased ; while pilgrims were able to once again visit ` Abdu ' l-Bahá, he was confined to the city.

True biennials flower only once, while many perennials will flower every year once mature.

She once had a neighbour's donkey castrated while looking after it, on the grounds of its " sexual harassment " of her own donkey and mare, for which she was taken to court by the donkey's owner in 1989.

However, they were later overtaken in the polls by the Conservatives and at the 1983 general election the Conservatives triumphed by a landslide, with Labour once again forming the opposition, while the SDP-Liberal Alliance came close to Labour in terms of votes ( a share of more than 25 %) although it only had 23 MPs compared to Labour's 209.

He provided that the New Testament ( other than the Book of Revelation ) be read through three times in a year, while the Old Testament, including the Apocrypha would be read through once.

Bo Diddley himself said that the name first belonged to a singer his adoptive mother was familiar with, while harmonicist Billy Boy Arnold once said in an interview that it was originally the name of a local comedian that Leonard Chess borrowed for the song title and artist name for Bo Diddley's first single, and guitar craftsman Ed Roman reported that another ( unspecified ) source says it was his nickname as a Golden Gloves boxer.

We have already seen that odd numbers were considered as being Yang, while the even numbers were Yin, so that the eight outer numbers of the Lo Shu represented these two principles in balanced equilibrium around the axial center.

Greenberg ( 1963 ) and others considered it a subgroup of Cushitic, while others have raised doubts about it being part of Afroasiatic at all ( e. g. Theil 2006 ).

In general, the alphabets of the Mediterranean region ( Anatolia, Greece, Italy ) are classified as Phoenician-derived, adapted from around the 8th century BCE, while those of the East ( the Levant, Persia, Central Asia and India ) are considered Aramaic-derived, adapted from around the 6th century BCE from the Imperial Aramaic script of the Achaemenid Empire.

Some tall cylinders are considered ceremonial vessels, while narrow-necked jars may have been used for liquids.

His reign was the most peaceful in the entire history of the Principate ; while there were several military disturbances throughout the Empire in his time, in Mauretania, Iudaea, and amongst the Brigantes in Britannia, none of them are considered serious.

For some, aesthetics is considered a synonym for the philosophy of art since Hegel, while others insist that there is a significant distinction between these closely related fields.

In this usage, the DMT is generally considered the main psychoactive active ingredient, while the MAOI merely preserves the psychoactivity of orally ingested DMT, which would otherwise be destroyed in the gut before it could be absorbed in the body.

Some of their works are considered precursors of archaeoastronomy ; antiquarians interpreted the astronomical orientation of the ruins that dotted the English countryside as William Stukeley did of Stonehenge in 1740, while John Aubrey in 1678 and Henry Chauncy in 1700 sought similar astronomical principles underlying the orientation of churches.

By a 20th-century classification, the idealists ( Kant, Hegel and others ), are considered the beginning of continental philosophy, while the empiricists are the beginning, or the immediate predecessors, of analytical philosophy.

Goswell argues that while Naomi is the central character of the book, Ruth is the main character, and so the book " can be considered aptly named.

" After wearing glasses for a while, his eyes became adjusted to the lenses, and at that point he became nearsighted and really did need glasses, which would years later establish John as one of the most famous " four-eyes " in rock and roll, though Holly is widely considered to be the first.

Tonnant and Spartiate, both of which later fought at the Battle of Trafalgar, joined the Royal Navy under their old names while Franklin, considered to be " the finest two-decked ship in the world ", was renamed HMS Canopus.

The Serbian army resisted the sudden night attack, while most of soldiers did not even know who they are fighting with, as Bulgarian camps were located next to Serbs and were considered allies.

The United Nations considered adopting such a reformed calendar for a while in the 1950s, but these proposals have lost most of their popularity.

In response, the Solomon Islands began recruiting Cuban doctors in July 2007, while Papua New Guinea and Fiji considered following suit.

Later on, Fascist Italy could also be considered as a " constitutional monarchy " of a kind, in the sense that there was a king as the titular head of state while actual power was held by Benito Mussolini under a constitution.

Chemical elements may also be categorized by their origin on Earth, with the first 98 considered to be naturally occurring, while those with atomic numbers beyond 98 have only been produced artificially as the synthetic products of man-made nuclear reactions.

Water insoluble chromium ( III ) compounds and chromium metal are not considered a health hazard, while the toxicity and carcinogenic properties of chromium ( VI ) have been known for a long time.

Following this definition, some chemists considered formaldehyde ( CH < sub > 2 </ sub > O ) to be the simplest carbohydrate, while others claimed that title for glycolaldehyde.

The difference between the two definitions is that under the former, finite sets are also considered to be countable, while under the latter definition, they are not considered to be countable.

" Casino rules vary on this ; some of these bets may not be callable, while others may be considered " working " during the come-out.

Animals that depend solely on animal flesh for their nutrient requirements are considered obligate carnivores while those that also consume non-animal food are considered facultative carnivores.