[1] "External anatomy: Large body with several marginal deep ruffles.

[2][1] "Internal anatomy: The male reproductive system consists of a branched vas deferens, a long seminal vesicle connected to a short ejaculatory duct, a small prostatic vesicle with two chambers, a muscular prostatic duct, and a small stylet housed in a shallow male antrum.

The female system has a shallow antrum with a short vagina directed backwards surrounded by a thick and strong mass of cement gland on its first portion.

"[2][1] This species is widespread in the tropical Indo-Pacific, from the Indonesian Archipelagos to Central Great Barrier Reef in Australia, Palau in Micronesia, Philippines and the islands of Hawaï.

[2] It can be found in the external slope or top coral reef, at a depth of 1–15 m. These flatworms are benthic and diurnal.