Cheliplana piriformis Brunet, 1968

Gobert, Stefan, Diez, Yander L., Monnens, Marlies, Reygel, Patrick, Van Steenkiste, Niels W. L., Leander, Brian S. & Artois, Tom, 2021, A revision of the genus Cheliplana de Beauchamp, 1927 (Rhabdocoela: Schizorhynchia), with the description of six new species, Zootaxa 4970 (3), pp. 453-494 : 477

publication ID	https://doi.org/ 10.11646/zootaxa.4970.3.2
publication LSID	lsid:zoobank.org:pub:FEABE248-E1EA-48F5-A1AF-0077FE40C257
DOI	https://doi.org/10.5281/zenodo.4766780
persistent identifier	https://treatment.plazi.org/id/03E0878B-186F-FF8A-62BE-1A5AFC1ACA15
treatment provided by	Plazi
scientific name	Cheliplana piriformis Brunet, 1968
status

Treatment

Material examined. Reference material. 1 whole-mounted specimen ( SMNH 52821 View Materials ) and 2 serially sectioned specimens ( SMNH Type 2819, SMNH 82508 View Materials ) .

Known distribution. Golfe de Marseille, France ( Brunet 1968).

Remarks. Our observations correspond to those of Brunet (1968). Live specimens are colourless and measure 1–1.2 mm. The proboscis is armed with a pair of slightly curved hooks, 13–14 μm long. A pair of soft proboscis sidepieces is present, each bearing a single, thick bristle. A single testis is situated alongside or directly posterior to the pharynx. The paired seminal vesicles are surrounded by longitudinal muscles and lead into the proximal end of the ‘club-shaped’ copulatory bulb. The copulatory bulb is surrounded by a thick layer of longitudinal muscles. The ejaculatory duct runs axially through the copulatory bulb and displays a series of widened sections. These sections appear as two to four ‘chambers’ and decrease in size towards the distal end of the bulb, where the ejaculatory duct forms an eversible, piriform cirrus, armed with small spines (~1 μm).