The left-shell of Pteriapenguin reared in cone cage was liable to infection of polychaete verminosis.
锥形笼养殖的企鹅珍珠贝左壳较易感染多毛类寄生虫病。
2
The research indicates that the microscale spiral (vortex)growth dislocation is another important growth mechanism of Pteriapenguin and blister pearl from Sanya, Hainan Province.