Taxonomy and phylogeny of Koinocystididae (Platyhelminthes, Kalyptorhynchia) with the description of three new genera and twelve new species Author Diez, Yander L. 0000-0001-8741-4799 Universidad de Oriente, Biology & Geography Department, Ave. Patricio Lumumba s / n, CP 90500, Santiago de Cuba, Cuba. yanderluis 87 @ gmail. com, yander @ uo. edu. cu; https: // orcid. org / 0000 - 0001 - 8741 - 4799 & Hasselt University, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, Universitaire Campus Gebouw D, B- 3590 Diepenbeek, Belgium yander@uo.edu.cu Author Monnens, Marlies 0000-0002-91331512 Hasselt University, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, Universitaire Campus Gebouw D, B- 3590 Diepenbeek, Belgium & marlies. monnens @ uhasselt. be; https: // orcid. org / 0000 - 0002 - 91331512 marlies.monnens@uhasselt.be Author Aguirre, Rosa Isabel 0000-0002-7311-2308 Centro Oriental de Ecosistemas y Biodoversidad (BIOECO). Museo Tomás Romay, Calle Enramadas 601, CP 90100, Santiago de Cuba, Cuba. iaguirrealcolea @ gmail. com; https: // orcid. org / 0000 - 0002 - 7311 - 2308 iaguirrealcolea@gmail.com Author Yurduseven, Rana 0000-0002-2047-5375 Hasselt University, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, Universitaire Campus Gebouw D, B- 3590 Diepenbeek, Belgium & rana. yurduseven @ hotmail. com; https: // orcid. org / 0000 - 0002 - 2047 - 5375 rana.yurduseven@hotmail.com Author Jouk, Philippe 0000-0002-6436-2401 Hasselt University, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, Universitaire Campus Gebouw D, B- 3590 Diepenbeek, Belgium & philippe. jouk @ kmda. org; https: // orcid. org / 0000 - 0002 - 6436 - 2401 & Royal Zoological Society of Antwerp, Centre for Research & Conservation, Koningin Astridplein 20 - 26, B- 2018 Antwerp, Belgium. University of British Columbia, Departments of Botany and Zoology, 6270 University Blvd., Vancouver, BC, V 6 T 1 Z 4 Canada. philippe.jouk@kmda.org Author Van Steenkiste, Niels W. L. 0000-0002-2676-7862 niels _ van _ steenkiste @ hotmail. com; https: // orcid. org / 0000 - 0002 - 2676 - 7862 niels_van_steenkiste@hotmail.com Author Leander, Brian S. 0000-0003-0798-0470 bleander @ mail. ubc. ca; https: // orcid. org / 0000 - 0003 - 0798 - 0470 bleander@mail.ubc.ca Author Schockaert, Ernest 0000-0003-0666-5604 Hasselt University, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, Universitaire Campus Gebouw D, B- 3590 Diepenbeek, Belgium & ernest. schockaert @ uhasselt. be; https: // orcid. org / 0000 - 0003 - 0666 - 5604 ernest.schockaert@uhasselt.be Author Reygel, Patrick 0000-0001-8721-6290 Hasselt University, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, Universitaire Campus Gebouw D, B- 3590 Diepenbeek, Belgium & patrick. reygel @ uhasselt. be; https: // orcid. org / 0000 - 0001 - 8721 - 6290 patrick.reygel@uhasselt.be Author Smeets, Karen 0000-0001-9673-8824 Hasselt University, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, Universitaire Campus Gebouw D, B- 3590 Diepenbeek, Belgium & karen. smeets @ uhasselt. be; https: // orcid. org / 0000 - 0001 - 9673 - 8824 karen.smeets@uhasselt.be Author Artois, Tom 0000-0002-2491-7273 Hasselt University, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, Universitaire Campus Gebouw D, B- 3590 Diepenbeek, Belgium & tom. artois @ uhasselt. be; https: // orcid. org / 0000 - 0002 - 2491 - 7273 tom.artois@uhasselt.be text Zootaxa 2021 2021-03-23 4948 4 451 500 journal article 7466 10.11646/zootaxa.4948.4.1 ae92fbc8-7dd7-4fcd-a469-9f09c96946f0 1175-5326 4629235 44061E80-81B7-46AF-AD51-9B461C2E2B67 Reinhardorhynchus Diez, Monnens & Artois gen. n. urn:lsid:zoobank.org:act: 02DC1CAC-6389-459E-B933-42E9647E307E Diagnosis. Representative of Koinocystididae with a proboscis with a juncture sphincter. Copulatory bulb of the conjuncta duplex-type, except in R. hexacornutus sp. n. which has a copulatory bulb of the divisa duplex-type. Copulatory organ with an armed or unarmed cirrus. Some species also with a papillary cirrus in the copulatory bulb and one to six accessory hooks distally. Etymology. In honour of the late Prof. Dr. Reinhard Rieger, for his enormous contribution to turbellarian research. Type species. Reinhardorhynchus riegeri ( Karling, 1978 ) comb. n. , here designated. Other species. Reinhardorhynchus anamariae sp. n. , R . beatrizae sp. n. , R . bispina ( Karling, 1980 ) comb. n. , R . curvicirra ( Karling, 1980 ) comb. n. , R . evelinae ( Marcus, 1954 ) comb. n. , R. hexacornutus sp. n. , R . pacificus sp. n. , R . renei ( Reygel, Willems & Artois, 2011 ) comb. n. , R . riae sp. n. , R . ruffinjonesi ( Karling, 1978 ) comb. n. , R . scotica ( Karling, 1954 ) comb. n. , R . soror sp. n. , R . tahitiensis sp. n. , R . unicornis sp. n . , and R . variodentata ( Karling, Mack-Fira & Dörjes, 1972 ) comb. n.