A Schengen visa, also called "C" visa, is a short stay visa (up to 90 days per semester) valid for the 26 States member of the Schengen agreement unless indicated otherwise on your visa---此条来源于法国驻洛杉矶领事馆官网，直接由法国政府提供的正面描述
According to the purpose of traveling the Uniform Schengen Visa applies to all of the three categories, “A”, “B” and “C”.
Schengen visa (Type C - short stay)，Schengen visa is a short-stay visa issued by all countries in the Schengen area
Short Term Visas- Schengen "C'" Type
Short-stay visas are for visits of up to a total of 90 days, calculated over a period of 180 days. The number of days is calculated from the date of first entry to the territory of the countries of the Schengen area.
A uniform visa (type C) – also known as a short-stay visa – entitles its holder to free movement throughout the entire Schengen Area for a maximum of 90 days in any 180-day period.
A Schengen visa (or short stay visa) is valid within the whole Schengen space. ---法国驻华盛顿领馆，明确写着schengen visa和short stay visa是可互换的名称
Schengen Visa, Category C ,(short-term visa - for visits to Germany of up to 90 days)
Schengen Visa (C type / Short Stay)，If you wish to visit Poland for a short period of time (less than 90 days in period of 180 days), you must obtain a Short Term - Schengen visa.
全部来源于政府官方网站，需要哪个的网址发给你，全部非常正面的描述了short stay visa即type C visa即schengen visa