Assonance is the use of repeated vowel sounds in a series of words. If the lines below are the supposed lines given:
He was speckled with barnacles, fine rosettes of lime, ⇒ assonance vowel sound of "i"and infested with tiny white sea-lice, ⇒ assonance vowel sound of "i"and underneath two or threerags of green weed hung down. ⇒ assonance vowel sound of "e"While his gills were breathing in ⇒ assonance vowel sound of "i"the terrible oxygen --the frightening gills, ⇒ assonance vowel sound of "i"fresh and crisp with blood, that can cut so badly— ⇒ assonance "a"I thought of the coarse white flesh packed in like feathers, the big bones and the little bones, ⇒ assonance "i" and "o"