On the genus Typhlopolycystis Karling, 1956 (Platyhelminthes, Kalyptorhynchia, Polycystididae), with data on the five known species and the description of eleven new species Author Schockaert, Ernest R. Author Moons, Patricia Author Janssen, Toon Author Tessens, Bart S. Author Reygel, Patrick C. Author Revis, Nathalie Author Jouk, Philippe E. H. Author Willems, Wim R. Author Artois, Tom J. text Zootaxa 2019 2019-05-08 4603 1 81 104 journal article 26901 10.11646/zootaxa.4603.1.4 1fa78a19-6a9c-498b-89b5-a0d6ceb58080 1175-5326 2673305 9539EFE1-7676-4015-946B-9F1A2782AB38 Subfamily Typhlopolycystidinae Evdonin, 1977 Type genus: Typhlopolycystis Karling 1956 (by original designation). Diagnosis (emended by Artois & Schockaert (2000) and slightly adapted): Polycystididae with a proboscis of 1/8 to 1/3 of body length. Cone retractors parallel to each other. Proboscis with a thick, inner circular muscle layer. Four pairs of proboscis retractors and one pair of integument retractors. Two pairs of strong dilators on the proboscis cavity. Gonads unpaired (vitellaria may be paired). Stylet a simple plate, a gutter or a tube. Accessory stylet, if present, tubiform, proximally connected to the stylet. Accessory glandular organ mostly present. Prostate vesicle (if present) completely or partly enclosed by the proximal part of the male atrium. Female bursa terminal. A pear-shaped seminal receptacle, a sclerotized tube or a muscular bulb next to the ovo-vitelloduct (except in Papia an Stradorhynchus ).