7 Nor bubbling roundel they behind them sent;

roundel > circle [of ripples]

8 The rest of other fishes drawn were,

rest > [other nereids' chariots] of > by fish > (So the dolphin was believed to be)

9 Which with their finny oars the swelling sea did shear.

304.34

Soone as they bene arriu'd vpon the brim
2 Of the Rich strond, their charets they forlore,
And let their temed fishes softly swim
4 Along the margent of the fomy shore,
Least they their finnes should bruze, and surbate sore
6 Their tender feet vpon the stony ground:
And comming to the place, where all in gore
8 And cruddy bloud enwallowed they found
The lucklesse Marinell, lying in deadly swound;

1 Soon as they been arrived upon the brim

Soon > [As soon] been > [were, had] brim > margin, edge

2 Of the Rich Strand, their charets they forlore,