Pseudohaplogonaria sutcliffei (Haploposthiidae)

Achatz, Johannes G., Hooge, Matthew D. & Tyler, Seth, 2007, Convolutidae (Acoela) from Belize, Zootaxa 1479, pp. 35-66 : 65

Reassignment of Pseudohaplogonaria sutcliffei (Haploposthiidae) to the genus Convoluta (Convolutidae)

Dörjes (1968) transferred Convoluta sutcliffei Hanson, 1961 , to his newly erected genus Pseudohaplogonaria (Haploposthiidae) , which was established for species having an antrum but lacking a penis or seminal vesicle. However, in Hanson’s (1961) description of C. sutcliffei , he describes a well-defined seminal vesicle surrounding a “genital antrum”. Additionally, he provides a photograph and reconstruction of a sagittal section in which it is clear that the genital atrium is actually a penis that is surrounded by a seminal vesicle. Consequently, this species is herein removed from the Haploposthiidae and reassigned to the genus Convoluta . C. sutcliffei can be distinguished from all other species within the genus by its possession of paired, caudal lobes and bristles that are present along the posterior body margin.