Words with 'pha' at the start and 'a' at the end

In Scrabble, what's the highest number of points you can get from words beginning with 'pha' and ending with 'a'?
From this combination of letters, one can make 'phasmida' which gets 16 points.

How many letters does the longest word from this list consist of?
The largest word one can assemble from this list is 'pharyngoscleroma', which has 16 characters.

What's the most common word on this page?
The most popular word is 'phantasmagoria', which in fact is the 68419^th most common word in the dictionary.

What word from this list is the most interesting?
A good example of an unusual word from this list goes to 'phainopepla'. 'Phainopepla' is defined as "A small crested passerine bird (Phaïnopepla nitens), native of Mexico and the Southern United States. The adult male is of a uniform glossy blue-black; the female is brownish. Called also black flycatcher.", according to the English dictionary.

What's the max number of words you are able to make from this list?
From this page of words that start with 'pha' and end with 'a', there are 54 amazing combinations which are possible.