Eat very sweet, no core, thin skin, easy to peel, small, the market price of about ten dollars a catty, may I ask what this is called orange?

Sand sugar orange. Shatsugange, formerly known as the October orange, also known as the Sihui Shatsugange, because of its sweet flavor such as sugar so named Shatsugange. Native to the area of Guangning, Sihui, is the traditional specialty of Deqing, Fengkai, is one of the main varieties of local citrus. The fruit of tangerine is flat and round, with tumor-like protrusion at the top, the tip of the umbilicus is concave, with orange color, thin wrapping wall, easy to peel. Shatangju, especially in the town of Sihui Huangtian produced for its fresh and very sweet, no dregs, delicate taste, is a good product. It is rich in vitamin C, calcium, fiber, a small amount of protein, fat; rich glucose, fructose, sucrose, malic acid; berry acid, citric acid; carotene, thiamine; riboflavin, niacin, ascorbic acid; calcium, phosphorus, magnesium, sodium, and other essential elements of the human body, shatsujian orange taste sweet and sour, cold, with the qi, phlegm, moistening the lungs and clearing the intestines, replenishing the blood, strengthening the spleen and other effects. Shatsugange is Deqing, Huaji, Guangning, Sihui, Fengkai traditional souvenirs, and by the "Yangcheng Evening News" known as "a unique".