The small one is found in two varieties, one standing 40 centimeters and the other below 30 centimeters. The first is much more numerous, and while the breed lacks the stature of the mid-sized type, it possesses considerable cleverness and stamina. Its tongue sometimes has black spots, and unlike its mid-sized cousin, its ears stand straight up.
小型犬有二種，一種身高平均四十公分，一在卅公分以下；在台大畜牧所研究人員三個月的奔波中，已見不到後者；前者體格沒有中型狗魁梧，但瘦長伶俐，是長跑健將。