Hooge M.D. & Rocha C.E.F. 2006 (citation) - p. 22, "This species was very fast moving and fairly uncommon in our samples. Due to a lack of available specimens, only a single mature animal was fixed for histological sectioning. Unfortunately, this single specimen is slightly damaged around the gonopore, and as such, it is not possible to determine whether it is solely a male gonopore, or a common gonopore that also opens to the seminal bursa. Our species is placed in the genus Archaphanostoma due to its possession of the diagnostic character—a syncytial seminal bursa. A. marcusi differs most substantially from the other three known species of the genus by its possession of a bursal nozzle. A disjunct nozzle is an uncommon occurrence among members of the Isodiametridae, but is present in Aphanostoma bruscai Hooge and Tyler, 2003 (see also Petrov et al. 2006)."
Notes for the valid (accepted) taxonomic name
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