Turbellarian taxonomic database

Praeaphanostoma hyalinorhabdoida Diagnosis


Species of Praeaphostoma without body
pigmentation or eyespots. Body 0.5 mm long, vermiform
with rounded anterior and more pointed poster end.
A single, large vacuole present in the posterior end with
additional smaller vacuoles present laterally and in
the anterior. Rhabdoid glands distinct in longitudinal
rows, more numerous towards body ends. Paired ovaries
and testes. Female system includes muscular seminal
bursa without adornments and a short, ciliated vagina
with muscular sphincter. Male system includes short,
cylindrical penis invaginated in seminal vesicle. Penis
with two distal, fingerlike lobes that reach outward
toward genital pore. Gonopore common.

[From Atherton S, Jondelius U (2021): 13]


Notes from synonyms

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