Systematic revision of the family Pleioplanidae Faubel, 1983 (Polycladida, Acotylea): new genus and combinations Author Rodríguez, Jorge B833502E-CBA4-40CA-AE5A-BAD02F539062 Email: jorge. rodriguezmonter @ gmail. com & urn: lsid: zoobank. org: author: B 833502 E-CBA 4 - 40 CA-AE 5 A-BAD 02 F 539062 jorge.rodriguezmonter@gmail.com Author Grande, Cristina C8634A50-D3EC-467A-A868-225C231B40F2 Departamento de Biología Molecular and Centro de Biología Molecular “ Severo Ochoa ” (Consejo Superior de Investigaciones Científicas), Universidad Autónoma de Madrid, 28049 Madrid, Spain. & Email: cgrande @ cbm. csic. es & urn: lsid: zoobank. org: author: C 8634 A 50 - D 3 EC- 467 A-A 868 - 225 C 231 B 40 F 2 cgrande@cbm.csic.es Author Bulnes, NataliaVeronica 29337810-C92C-4D0B-AC1D-6078DEF42B66 Universidad Nacional del Sur, Departamento de Biología, Bioquímica y Farmacia, Zoología de Invertebrados I, San Juan 670, 8000 Bahía Blanca, Argentina. Grupo de Estudo do Medio Mariño (GEMM), Puerto Deportivo s / n 15960 Riveira, A Coruña, Spain. & Email: vebulnes @ criba. edu. ar & urn: lsid: zoobank. org: author: 29337810 - C 92 C- 4 D 0 B-AC 1 D- 6078 DEF 42 B 66 vebulnes@criba.edu.ar Author Almon, Bruno 7C752276-FBC7-4B16-9203-936B1BC46224 Email: brunoalmon 2 @ yahoo. es & urn: lsid: zoobank. org: author: 7 C 752276 - FBC 7 - 4 B 16 - 9203 - 936 B 1 BC 46224 brunoalmon2@yahoo.es Author Perez, Jacinto 1B36DC0B-C294-4FC7-85CE-1B0C7C658129 Email: hydronauta @ yahoo. es & urn: lsid: zoobank. org: author: 1 B 36 DC 0 B-C 294 - 4 FC 7 - 85 CE- 1 B 0 C 7 C 658129 hydronauta@yahoo.es Author Noreña, Carolina DD03B71F-B45E-402B-BA32-BB30343E0D95 urn: lsid: zoobank. org: author: DD 03 B 71 F-B 45 E- 402 B-BA 32 - BB 30343 E 0 D 95 & Corresponding author: norena @ mncn. csic. es norena@mncn.csic.es text European Journal of Taxonomy 2017 2017-01-25 264 1 30 journal article 22219 10.5852/ejt.2017.264 3fdba419-604c-497c-9c89-a1f6be25fc92 2118-9773 3823145 Laqueusplana megala ( Marcus, 1952 ) comb. nov. Figs 1 , 4 , 6B Notoplana megala Marcus, 1952: 85 , figs 154–158. Pleioplana megala – Faubel 1983: 117 . Examined material One mature, sagittally sectioned specimen from the invertebrate collection of the Swedish Museum of Natural History in Stockholm ( Sweden ), Cat Nr: SMNH 109094 to 109096 (3 slides). Type locality BRAZIL : Island of São Sebastião. Description Body shape elongated. Cryptic colour. Opaque dorsal appearance. Longitudinal median line not outstanding. Without mottled background. Smooth dorsal surface. Nuchal tentacles absent. Tentacular knobs present ( Fig. 1D ). Marginal eyes absent. Tentacles absent; instead tentacular eyes present in rounded and compact clusters. Dorsal and ventral frontal eyes absent. Cerebral eyes in two clusters ( Fig. 1E ). Pharynx located in second or last body third, strongly ruffled and ventrally oriented. Oral Fig. 4. Laqueusplana megala ( Marcus, 1952 ) comb. nov. A–B . Histological sections of the female reproductive system (anterior end to the left). C . Sagittal reconstruction of the reproductive system. D–E . Histological sections of the male reproductive system (anterior end to the left). pore position in second body third and in posterior region of pharynx. Intestine with numerous branches without anastomosis. Intestinal vesicles absent. Gonopores clearly separated. MALE REPRODUCTIVE SYSTEM ( Fig. 4 A–E). Single male pore. Male copulatory apparatus not enclosed within muscular bulb, oriented forward and located in last body third. Ejaculatory duct with spiralshaped stylet (forming a loop between prostatic vesicle and pharynx). Prostatic vesicle interpolated. Connection between ejaculatory duct and prostatic vesicle with projection. Internal glandular lining of prostatic vesicle with tubular chambers. Extravesicular prostatic secretion. Prostatic glands located at proximal end of prostatic vesicle. Seminal vesicle simple or spindle-like. Spermiducal bulbs present. FEMALE REPRODUCTIVE SYSTEM ( Fig. 4 A–D). Vagina elongated, tube-like, looping towards male complex. Bulbous Lang’s vesicle. Paired uterus. Uterine vesicles absent. Tube-like cement chamber. Endolecithal eggs. Biology Specimens found on algae from the upper littoral zone. Distribution Ilha de São Sebastião, Ubatuba ( São Paulo State ), Brazil .