Analantoidea or Anallantoidea: How To spell?
The word Analantoidea is misspelled against Anallantoidea, a noun meaning "The division of Vertebrata in which no allantois is developed. It includes amphibians, fishes, and lower forms."
Anallantoidea has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings ana & antoidea which should not be misspelled with single 'L'
Wrong Spelling:  ana-l-antoidea  Correct Spelling:  ana-ll-antoidea 
Find more incorrect spellings of Anallantoidea to spell right way.