Body flat elliptical, slightly narrower posteriorly, with a sinuous margin. Pellucid white in colour; mouth central, elliptical multilobate; a pair of dorsal tentacles; eyespots disposed in a pair of rings round the bases of the tentacles, and in two pairs of patches in front and behind the nervous ganglia.
Length 7.5 mm; breadth 4.5 mm
[From Moseley HN (1877): 24]
Diagnosis for the valid (accepted) taxonomic name