Prosthiostomoidea Bahia, Padula
publication ID |
https://doi.org/ 10.12681/mms. |
persistent identifier |
https://treatment.plazi.org/id/493387C9-FC20-FF98-5E0F-FE72AD5AF9FB |
treatment provided by |
Felipe |
scientific name |
Prosthiostomoidea Bahia, Padula |
status |
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Superfamily Prosthiostomoidea Bahia, Padula ,
& Schrödl, 2017
Family Prosthiostomidae Lang, 1884 View in CoL
Genus Prosthiostomum Quatrefages, 1845 View in CoL
Prosthiostomum siphunculus (Delle Chiaje, 1822)
( Figs. 7A View Fig and 9F View Fig )
Material examined. Three mature specimens, 22.10.2013, station M5, 5 m deep. Three mature specimens, 22.10.2013, station M3, 5 m deep. Two mature specimens, 21.01.2014, station M2, 4 m deep. Two specimens, 02.07.2014, station M1, 5 m deep. One specimen, station M4, 4 m deep. The area of the reproductive structures was separated and sagittally sectioned in two specimens (3 slides and 4 slides) .
Description. Body elongated with rounded anterior and pointed posterior margins. The cerebral eyes in two clusters. The marginal eyes encircle the anterior body margin not exceeding the level of cerebral eyes ( Fig. 8F View Fig ). Preserved specimens ranging 8–13 mm long and 2–3 mm wide
Digestive system. Tubular plicate pharynx housed in a pharyngeal pocket extending from behind the cerebral organ to the level of reproductive apparatus. Main intestine extending distally up to the level where the body starts tapering posteriorly.
Reproductive system. The paired vasa deferentia lead to the oval-shaped seminal vesicle, which opens to the ejaculatory duct. The latter also receives the sinuous prostatic ducts from two spherical prostatic vesicles ( Fig. 6B View Fig ). The horizontally oriented male antrium houses a penis armed with a tubular stylet. Sucker behind the female gonopore.
Female apparatus characterized by a short external vagina followed by a wide cement pouch ( Fig. 6B View Fig ), hence immersed in a dense mass of cement glands. The vagina continues dorsally, and before reaching the median intestine, turns posteriorly, where the internal vagina connects to the paired oviducts. Lang’s vesicle lacking.
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Kingdom |
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Phylum |
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Order |
Prosthiostomoidea Bahia, Padula
Gammoudi, Mehrez, Bulnes, Verónica N. & Kurt, Güley 2022 |
Prosthiostomidae
Lang 1884 |
Prosthiostomum
Quatrefages 1845 |