Placoneis abiskoensis (Hustedt) Lange-Bertalot et Metzeltin in Metzeltin & Witkowski 1996 [Link to DiatomBase]
Placoneis abundans D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis amoena Metzeltin, Kulikovskiy & Lange-Bertalot in Kulikovskiy et al. 2012
Placoneis amphibola (Cleve) E.J. Cox 2003 [Link to DiatomBase]
Placoneis anglica (Ralfs in Pritchard) Cox 2003 [Link to DiatomBase]
Placoneis anglica (Ralfs in Pritchard) R. Lowe in J.R. Johansen et al. 2004 [Link to DiatomBase]
Placoneis anglophila (Lange-Bertalot) Lange-Bertalot in D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis anglophila var. signata (Hustedt) Lange-Bertalot in D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis antediluvianum (Hustedt) Lange-Bertalot in D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis apicalicostata D. Metzeltin & Lange-Bertalot 2002 [Link to DiatomBase]
Placoneis balcanica (Hustedt) Lange-Bertalot, D. Metzeltin & Levkov in D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis bicuneus D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis boris-skvortzowii Metzeltin, Kulikovskiy & Lange-Bertalot in Kulikovski y et al. 2012
Placoneis bukhchuluunae D. Metzeltin, Lange-Bertalot & S. Nergui 2009 [Link to DiatomBase]
Placoneis centropunctata (Hustedt) Metzeltin et Lange-Bertalot 1998 [Link to DiatomBase]
Placoneis chilensis Lange-Bertalot & Rumrich in U. Rumrich, Lange-Bertalot & M. Rumrich 2000 [Link to DiatomBase]
Placoneis clementioides (Hustedt) Cox 1987 [Link to DiatomBase]
Placoneis clementis (Grunow) Cox 1987 [Link to DiatomBase]
Placoneis cocquytiae Fofa na, Sow, Taylor, Ector & De Vijver 2014 2014
Placoneis constans (Hustedt) E.J. Cox 2003 [Link to DiatomBase]
Placoneis constans var. symmetrica (Hustedt) H. Kobayasi in Mayama, S., Idei, M., Osada, K. & T. Nagumo 2002 [Link to DiatomBase]
Placoneis conveniens (Hustedt) Metzeltin et Lange-Bertalot 1998 [Link to DiatomBase]
Placoneis dacostae Metzeltin et Lange-Bertalot 1998 [Link to DiatomBase]
Placoneis demeraroides (Hustedt) Metzeltin et Lange-Bertalot 1998 [Link to DiatomBase]
Placoneis densa (Hustedt) Lange-Bertalot in D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis disparilis (Hustedt) Metzeltin et Lange-Bertalot 1998 [Link to DiatomBase]
Placoneis elegans D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis elegantula D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis elginensis (Gregory) Cox 1987 [Link to DiatomBase]
Placoneis elginensis f. exigua (Gregory) Bukhtiyarova 1995 [Link to DiatomBase]
Placoneis elginensis var. neglecta (Krasske) H. Kobayasi 2002 [Link to DiatomBase]
Placoneis elginensis var. undulata (Østrup) Lange-Bertalot in Lange-Bertalot, Kulbs, Lauser, Norpel-Schempp & Willmann 1996 [Link to DiatomBase]
Placoneis elliptica (Hustedt) T. Ohtsuka 2002 [Link to DiatomBase]
Placoneis ellipticorostrata D. Metzeltin, Lange-Bertalot & S. Nergui 2009 [Link to DiatomBase]
Placoneis exiguiformis (Hustedt) Lange-Bertalot in D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis exiguioides (Hustedt) Lange-Bertalot in D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis explanata (Hustedt) Lange-Bertalot in U. Rumrich, Lange-Bertalot, & M. Rumrich 2000 [Link to DiatomBase]
Placoneis gastriformis (Hustedt) Lange-Bertalot in D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis gelegma Kulikovskiy, Lange-Bertalot & Metzeltin in Kulikovskiy et al. 2012
Placoneis gracilis D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis gracilis f. minor (Manguin in Bourrelly & Manguin) D. Metzeltin & Lange-Bertalot 2007 [Link to DiatomBase]
Placoneis habita (Hustedt) Lange-Bertalot in D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis hambergii (Hustedt) K. Bruder in Bruder & Medlin 2007 [Link to DiatomBase]
Placoneis humilis D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis ignorata (Schimanski) Lange-Bertalot in U. Rumrich, Lange-Bertalot, & M. Rumrich 2000 [Link to DiatomBase]
Placoneis inexplorata (Krasske) Lange-Bertalot in D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis insignita (Hustedt) E.J. Cox 2003 [Link to DiatomBase]
Placoneis interglacialis (Hustedt) E.J. Cox 2003 [Link to DiatomBase]
Placoneis itamoemae Straube, Tremarin & Ludwig in Straube et al. 2013
Placoneis jatobensis (Krasske) Metzeltin et Lange-Bertalot 1998 [Link to DiatomBase]
Placoneis jatobensis var. capitata (Krasske) Metzeltin et Lange-Bertalot 1998 [Link to DiatomBase]
Placoneis lata (M. Peragallo in Tempère & Peragallo) R. Lowe in J.R. Johansen et al. 2004 [Link to DiatomBase]
Placoneis laticuneata Kulikovskiy, Lange-Bertalot & Metzeltin in Kuli kovskiy et al. 2012
Placoneis likhoshwayae Kulikovskiy & Lange-Bertal ot in Kulikovskiy et al. 2012
Placoneis macedonica Z. Levkov & D. Metzeltin in Levkov, Krstic, Metzeltin & Nakov 2007 [Link to DiatomBase]
Placoneis maculata (Hustedt) Z. Levkov in Levkov, Krstic, Metzeltin & Nakov 2007 [Link to DiatomBase]
Placoneis madagascariensis Lange-Bertalot & D. Metzeltin in D. Metzeltin & Lange-Bertalot 2012 [Link to DiatomBase]
Placoneis maior Kulikovskiy, Lange-Bertalot & Metzeltin i n Kulikovskiy et al. 2012
Placoneis margarita Kulikovskiy & Lange-Bertalot in Ku likovskiy et al. 2012
Placoneis merinensis D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis minor (Grunow) Lange-Bertalot in D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis miseranda Kulikovskiy, Lange-Bertalot & Metzeltin in Ku likovskiy et al. 2012
Placoneis molesta Metzeltin et Lange-Bertalot 1998 [Link to DiatomBase]
Placoneis molestissima D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis navicularis (Ehrenberg) E.J. Cox 2003 [Link to DiatomBase]
Placoneis neglecta R. Lowe in J.R. Johansen et al. 2004 [Link to DiatomBase]
Placoneis neotropica Metzeltin et Lange-Bertalot 1998 [Link to DiatomBase]
Placoneis obtuseprotracta (Hus tedt) Li & Metzeltin 2013 2013
Placoneis ohridana Z. Levkov & D. Metzeltin in Levkov, Krstic, Metzeltin & Nakov 2007 [Link to DiatomBase]
Placoneis ovillus D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis paraelginensis Lange-Bertalot in U. Rumrich, Lange-Bertalot & M. Rumrich 2000 [Link to DiatomBase]
Placoneis paraundulata T. Ohtsuka 2002 [Link to DiatomBase]
Placoneis parazula Kulikovskiy & Lange-Bertalot in K ulikovskiy et al. 2012
Placoneis parunculus (Hustedt) Lange-Bertalot & D. Metzeltin in D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis pellaifa Lange-Bertalot & Rumrich in U. Rumrich, Lange-Bertalot & M. Rumrich 2000 [Link to DiatomBase]
Placoneis perelginensis D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis placentula f. lanceolata (Grunow in Cleve et Grunow) Bukhtiyarove 1995 [Link to DiatomBase]
Placoneis placentula f. latiuscula (Grunow) Bukhtiyarova 1995 [Link to DiatomBase]
Placoneis placentula f. rostrata (Mayer) Bukhtiyarova 1995 [Link to DiatomBase]
Placoneis placentula var. jenisseyensis (Grunow) Bukhtiyarova 1995 [Link to DiatomBase]
Placoneis placentula var. rostrata (Mayer) N.A. Andresen, E.F. Stoermer, & R.G. Kreis, Jr. 2000 [Link to DiatomBase]
Placoneis porifera (Hustedt) E.J. Cox 2003 [Link to DiatomBase]
Placoneis prespanensis Z. Levkov, S. Krstic & T. Nakov in Levkov, Krstic, Metzeltin & Nakov 2007 [Link to DiatomBase]
Placoneis pseudanglica Cox 1987 [Link to DiatomBase]
Placoneis pseudoclementis (Hustedt) Lange-Bertalot in D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis pseudodemerarae (Hustedt) Metzeltin et Lange-Bertalot 1998 [Link to DiatomBase]
Placoneis pseudoporifera (Hustedt) Lange-Bertalot in D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis reversa (Hustedt) Lange-Bertalot in D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis rhombelliptica D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis rhombica (Brockmann) Lange-Bertalot in D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2003 [Link to DiatomBase]
Placoneis rhombica (Brockmann) Lange-Bertalot in D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis ruppeliana Kulikovskiy, Lange-Bertalot & Metzeltin in Kul ikovskiy et al. 2012
Placoneis santaremensis Metzeltin et Lange-Bertalot 1998 [Link to DiatomBase]
Placoneis scharfii Lange-Bertalot & Rumrich in U. Rumrich, Lange-Bertalot & M. Rumrich 2000 [Link to DiatomBase]
Placoneis serena (Frenguelli) D. Metzeltin in D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis signatoides D. Metzeltin & Z. Levkov in Levkov, Krstic, Metzeltin & Nakov 2007 [Link to DiatomBase]
Placoneis significans Lange-Bertalot in D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis sinensis Li & Metzeltin 2013 2013
Placoneis spinosa Kulikovskiy, Lange-Bertalot & Metzeltin in Kulikovskiy et al. 2012
Placoneis subclementis (Hustedt) Lange-Bertalot in D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis subgastriformis (Hustedt) E.J. Cox 2003 [Link to DiatomBase]
Placoneis subplacentula (Hustedt) E.J. Cox 2003 [Link to DiatomBase]
Placoneis subtilis Kulikovskiy & Lange-Bertalot in K ulikovskiy et al. 2012
Placoneis surinamensis (Cleve) Metzeltin et Lange-Bertalot 1998 [Link to DiatomBase]
Placoneis symmetrica (Hustedt) Lange-Bertalot in D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis tersa (Hustedt) Metzeltin et Lange-Bertalot 1998 [Link to DiatomBase]
Placoneis tsendeekhuui D. Metzeltin, Lange-Bertalot & S. Nergui 2009 [Link to DiatomBase]
Placoneis tumidula Z. Levkov in Levkov, Krstic, Metzeltin & Nakov 2007 [Link to DiatomBase]
Placoneis undulata (Østrup) Lange-Bertalot in U. Rumrich, Lange-Bertalot, & M. Rumrich 2000 [Link to DiatomBase]
Placoneis uruguayensis D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis vicina (Hustedt) Metzeltin et Lange-Bertalot 1998 [Link to DiatomBase]
Placoneis waernensis (Foged) Lange-Bertalot & D. Metzeltin in D. Metzeltin, Lange-Bertalot & S. Nergui 2009 [Link to DiatomBase]
Placoneis witkowskii D. Metzeltin, Lange-Bertalot & F. García-Rodríguez 2005 [Link to DiatomBase]
Placoneis yacatanensis D. Metzeltin & Lange-Bertalot 2007 [Link to DiatomBase]
Placoneis zimmermannii Metzeltin et Lange-Bertalot 1998 [Link to DiatomBase]
Placoneis zula Kulikovskiy, Lange-Bertalot & Metzeltin in Kulikovskiy et al. 2012
) include cards of species and infraspecific taxa. No symbol next to a taxon name = no cards are present in the NSF (mostly a taxon described prior to 1933).