Five mature Chinese white dolphins (Indo-Pacific Hump-backed Dolphin) and 6 new born dolphins were found dead in Xiamen, and the morphology, number, distribution style, inner structute and wear condition of the teeth are studied.

• 对厦门5头中华白海豚成体和6头哺乳期的幼仔，进行齿的形态、齿式、内部构造和磨损情况的研究；