Migrating Mudsucking Mollusk

Milton was a mudsucking mollusk.
And you thought you had it bad.
Milton, having been born into it, as it were, didn’t know anything better so he was happy. In fact since he was a mudsucker he actually reveled in filtering out the nutrients he needed to survive as he trummeled along. For some reason Milton and quite a few of his fellows felt a calling to migrate northward. This coupled with the fact that the mud where Milton was living wasn’t as nutrient rich as they were accustomed to, due to a drought and their own over grazing, made for a migration -- en masse.
This, by the way, made Milton a migrating mudsucking mollusk.
Off they went, headed for the “East River” just east of Manhattan.
Sorry about all the m’s.
On his way there Milton encountered a sandy area. No mud. Sand as you know is not full of muck. Unless you’re in Florida or Hawaii, or perhaps southern California or east Texas—OK, this particular patch of sand was not full of muck. Muck containing the nutrients found in mud, and therefore Milton was traveling through a veritable desert. Fortunately it was only a hundred yards wide, but unfortunately Milton was only two and a half inches long and only an inch wide so it seemed awfully long too poor Milton.
Milton was slow even for a mudsucking mollusk. This was good because Milton came across a starfish, but that particular starfish had gorged himself on Milton’s fellows. Milton climbed right over him without protest, and took up residence in a sewer pipe near the corner of Stuyvessant and E. 21st Street about 5 blocks from Madison square. He had with his wife Meme (who he met in the East River, but that’s a whole ’nother story) 547,312 descendants many of whom watched the fights up the street from grandpa Milty’s place.