Acancer crab is sometimes referred to as a

Cancer crab is the scientific bame for JONAH CRAB. It inhabits in North America's east coast. It is found in  depths of up to 750 metres. It has a rounded and rough carapace with light spots on it. The Cancer borealis, or Jonah crab eats mussels, arthropods, snails, and some algal species.

the answer:

in the first part of the story running is all that matters to squeaky. running gives her confidence and defines who she is. at the beginning of the story she says that other kids call her mercury because she runs very fast. in the text she refers to herself as "miss quicksilver".

the line that provides the best evidence that squeaky has self-confidence is

" and i continue with my breathing exercise, strolling down broadway toward the ice cream man on 145th with not a care in the world cause i am miss quicksilver herself".