Cercaria corbiculae sp. nov. in a Brackish Water Clam Corbicula japonica PRIME from Lake Shinji, Shimane Prefecture, Japan

Abstract

A monorchiid cercaria was found in a brackish water clam Corbicula japonica collected from Lake Shinji, Shimane Prefecture, Japan, and a new name Cercaria corbiculae sp. nov. is proposed. The present species is a distome, pharyngeate cercaria with a slender long tail, no stylet, no eyespots, long ceca, three pairs of penetration gland cells, 16 flame cells, a saccate excretory vesicle deflected to left.