Long-tailed weasel. The long-tailed weasel (Mustela frenata), also known as the bridled weasel or big stoat, is a species of mustelid distributed from southern Canada throughout all the United States and Mexico, southward through all of Central America and into northern South America.
Hypomenorrhea or hypomenorrhoea, also known as short or scanty periods, is extremely light menstrual blood flow. It is the opposite of hypermenorrhea which is more properly called menorrhagia.
Although black or brown colored discharge during menstrual flow is fairly common among women, the situation doe not indicate severe disorders. This is because discoloration is commonly a result of the long menstrual period. The long period means that the blood has become oxidized thereby causing the change in color.