[1] Long scars and sets of parallel scars, visible on the otherwise pale and relatively unmarked pelage of crabeaters, are present on nearly all young seals. (en.wikipedia.org)
It is distinguished from mainland spotted skunks by its shorter tail with less white ventral coloration (45 % white compared to 55 % white), slightly larger size, broader skull, and proportionately less white and more black in pelage color. (en.wikipedia.org)
The adult pelage is relatively brighter. (nps.gov)