cirri

cirri Hair-like structures in animals and plants; small, slender, flexible fleshy protuberances; the singular is cirrus.

触毛在动物或植物中像头一样,柔韧结构。

In addition,a new structure,frontal cirrus between the frontal cilia and laterofrontal cirri,is found only on the gill surface of Corbicula fluminea.

此外，仅在河蚬鳃表面前纤毛和前侧纤毛之间，观察到一种纤毛结构——前触毛。

The proter's oral primordium appears (under the pellical, too) anterior to the parent AZM2, from which membranells 7―11 of AZM1, the whole AZM2, PM and one of the frontal cirri will be originated;

（2）前仔虫口原基出现在老仔虫AZM2之前方深处，其随后前仔虫AZM2、口侧膜及AZM1一部分，并更老结构AZM1中第7―11片小膜。