Polygonia comma form of comma is frequently confused with the dark form of the question mark ("P. interrogationis"), but the two can readily be distinguished by the shape of the comma mark on the underside. The pale form is easily confused with the satyr comma ("P. satyrus"), which usually occurs north and west of the eastern comma's range. They can be distinguished by the upperside color, which is orange brown in the comma and tawny yellowish brown in "P. satyrus"; by the underside pattern, which tends to be mottled in the comma but appears to be more longitudinally streaked in "P. satyrus";
Comma Other ascender letters with carons, such as letters "ȟ" (used in Finnish Romani and Lakota) and "ǩ" (used in Skolt Sami), did not modify their carons to superscript commas. In 16th-century Guatemala, the archaic letter cuatrillo with a comma (Ꜯ, ꜯ) was used to write Mayan languages. Comma The comma is a punctuation mark that appears in several variants in different languages. It has the same shape as an apostrophe ( ' ) or single closing quotation mark in many typefaces, but it differs from them in being placed on the baseline of the text. Some typefaces render it as