Labels:bulletin board | daily OCR: CNIDARIANS Hydroids planktonic or medusa stage in which the iuveniles float freely n water Another group of hydroids form large colonial jellyfish which the Portuguese man-of- war the best known Caribbean especially along Atlantic-facing beaches in the winter when the iellvfishes are blown in from the Atlantic Ocean third and less- known group the Caribbean IS small and fernlike and can deal 20F3 juveniles hvdroids knowr jellyfishes
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