Guido T. Poppe (born 11 September 1954) is a Belgian malacologist, shell dealer, and author of more than 60 books and publications about shells, mainly about the families Volutidae and Trochidae.

Biography The son of a sports fisherman, Poppe became fascinated in childhood by marine life during yearly holidays in Brittany, France. His first diving experiences were in these waters in 1968.

He developed a career as a professional freelance conchologist. This allowed him to dive in many parts of the world, in European waters and in many tropical seas from Baja California to Queensland, Australia. In 2003 he moved from Belgium to the Philippines. Most of his dives are now concentrated in the Philippines. After more than 6,000 dives, he has compiled a collection of photographs of seashells and marine life.Biography of Guido Poppe

He was the vice-president of the Société Belge de Malacologie (Belgian Malacological Society) for eight years.

Scientific work Poppe discovered more than 1000 new species of Mollusca and described more than 500 of these, mainly in the families Volutidae, Trochidae, and Colloniidae as well as the Philippine malacofauna. The World Register of Marine Species (WoRMS) has listed 668 marine species named by Poppe (alone or together with others such as Sheila Tagaro, Henk Dekker, Yoshihiro Goto or Salisbury) in its database. More than 40 species have been named after him by scientists from all over the world either with the epithet poppei, guidopoppei or guidoi.

In July 2004, together with his son, Philippe, he created the journal Visaya, specialising in the taxonomy of Mollusca.

He named three species after his son: the calliostoma topsnail Calliostoma philippei (Poppe, 2004); another sea snail, Calliotropis philippei (Poppe, Tagaro & Dekker, 2006); and Bayerotrochus philpoppei (Anseeuw, Poppe & Goto, 2006). He named the topsnail Calliostoma mariae after his mother, Maria Peyskens.

Bibliography 1979 Poppe, G.T. - Notes on Ampulla PriamusThe Strandloper, June/July 1979 # 196 p. 1 1981 Poulicek, M. & Poppe, G.T. - Contribution des coquilles de Mollusques à la constitution de la fraction organodétritique des sédiments marins (Corse, mer Méditerranée) - étude faunistique préliminaire. Bull. Soc. Roy. Sci. Liège, 50 : 519-542. 1982 Poppe, G.T. - Notes on Cymbiola marispuma Angioy and Biraghi, 1997, Festilyria festiva (Lamarck, 1811), Lyria vicdani Kosuge, 1981. 1982 Poppe, G.T., - Separating Voluta Sophia and Voluta cymbiola. 1984 Poppe, G.T., - Two new Australian Volutes. 1985 Poppe, G.T. - Updates on the genus Cymbiolacca (Gastropoda, Volutidae), with the description of two new taxaPoppe, G.T. (1985). Notes on the genus Cymbiolacca (Gastropoda, Volutidae), with the description of a novel species and a novel form Inf. Soc. Belge Malac. 13(3-4): 187-209, 3 plates 1986 Poppe, G.T. - A novel species and a novel subspecies of Volutidae from northwestern AustraliaPoppe, G.T. (1986). A novel species and a novel subspecies of Volutidae from northwestern Australia APEX 1(1): 27-32 1987 Poppe, G.T. - New Volutes since 1970 part I.La Conchiglia Vol 19 #218-219 p. 8-22 1987 Poppe, G.T. - New Volutes since 1970 part II.La Conchiglia Vol 19 #220-221 p. 20-27 1987 Poppe, G.T. - A novel species of Volutidae from north-western Australia. 1988 Poppe, G.T. - New Volutes since 1970. 1988 Bouchet Ph. & Poppe, G.T. - Deep water volutes from the new Caledonian region with a discussion on Biogeography. 1989 Martin, P. & Poppe, G.T. - Notes on the Mollusca of Easter Island: Cypraea. 1989 Martin, P. & Poppe, G.T. - Description of a new species of Cypraeidae from the Marquesas Islands. 1989 Poppe, G.T. & Martin, P. - New Findings of Cypraea teramachii Kuroda, 1938. 1991 Poppe, G.T. & Martin, P. - A new Trivia species from South Africa. 1991 Poppe & Goto: European Seashells Vol. IPoppe, G.T.; Goto, Y. (1991). European seashells: 1. (Polyplacophora, Caudofoveata, Solenogastra, Gastropoda). Christa Hemmen: Wiesbaden, Germany. . 352 pp. 1992 Poppe, G.T. - New species and new subspecies in Volutidae. 1992 Poppe & Goto: Volutes 1993 Poppe & Goto: European Seashells Vol. IIPoppe, G.T.; Goto, Y. (2000). European seashells: 2. (Scaphopoda, Bivalva, Cephalopoda). 2nd print. ConchBooks: Hackenheim, Germany. . 221 pp 1993 Poppe & Goto: Recent Angariidae 1993 Poppe, G.T.: A new Cowrie. 1994 Poppe & Senders: An annotated price catalogue of marine shells 1994 Cossignani T. & Poppe G.T.: Conchiglie ed arte primitiva 1995 Bouchet Ph. & Poppe, G.T. – A review of the deep-water volute genus Calliotectum (Gastropoda: Volutidae). 1996 Poppe & Goto: A listing of Living Mollusca. Vol. I and Vol. II 2 parts each 2004 Poppe, G.T. & Tenorio, M.J. Description of three deep-water species of Conus from the Central Philippines. 2004 Poppe, G.T. - Description of Spectacular new species from the Philippines. 2004 Tenorio M.J. & Poppe G.T. – Description of three deep-water species of Conus from the central Philippines. 2004 Poppe G.T. & Fraussen K. – A new species of Nassaria from the central Philippines. 2004 Poppe, G.T. - Conchological Treasure from the Philippines Part I. 2005 Poppe, G.T., Tagaro S., Dekker H. - Discovery of new Guildfordia near Balut Island. 2005 Poppe, G.T., Tagaro S. & Buijse J. - A new subspecies of Cypraea hungerfordi from Aliguay Island, the Philippines. 2005 Poppe, G.T. & Tagaro S. - A new Conus from Aliguay Island, the Philippines. 2005 Poppe, G.T. - Conchological Treasures from the Philippines Part II. 2005 Poppe, G.T. & Fraussen K. - Revision of Phos and Antillophos (Buccinidae) from the Central Philippines. 2005 Poppe, G.T. & Patamakanthin S. - On the Discovery of New Population of Turbinella fusus Sowerby, 1825, a valid species. 2005 Poppe, G.T. & Tagaro S. - Enigmavasum enigmaticum, a new species from Cotabato, the Philippines. 2005 Poppe, G.T. & Tagaro, S. - A new Cymbiola (Volutidae, Gastropoda) from the Arafura Sea. 2005 Anseeuw & Poppe: Pleurotomariidae: An Iconographic visit anno 2005 as a supplement of Visaya 2006 Poppe, Tagaro & Dekker: The Seguenziidae, Chilodontidae, Trochidae, Calliostomatidae and Solariellidae of the Philippine Islands as supplement of Visaya 2006 Poppe, G.T. & Tagaro, S. – A New Classification of Gastropods according to Bouchet & Rocroi, 2005 2006 Poppe, G.T. & Tagaro, S. – Notes on two Amphidromus from the Philippine Islands. 2006 Poppe, G.T. & Tagaro, S. – Possible Sexual dimorphism in Ovulidae: Primovula concinna (A. Adams & Reeve, 1848).Visaya Net, read the full article http://www.conchology.be/?t=702&year=2006&volume=20&vnet=1303 2006 Anseeuw P., Poppe G.T. & Goto Y. – Description of Bayerotrochus philpoppei sp. nov. from the Philippines. 2006 Poppe G.T., Tagaro S.P. & Brown L. – A New Large Cirsotrema From Australia. 2006 Poppe G.T. & Tagaro S.P. – A New Fusinus From The Philippines. 2006 Poppe G.T. & Tagaro S.P. – New Mitridae and Costellariidae from the Philippines and the East China Sea. 2006 Poppe G.T., de Suduiraut E.G. & Tagaro S.P. – New Costellariidae from the Philippines. 2007 Fraussen K. & Poppe G.T. – The Genus Nassaria (Buccinidae) in the Central Philippines. 2007 Tenorio M.J., Poppe G.T. & Tagaro S.P., – New Indo-Pacific Conidae with Taxonomic and Nomenclatural Notes on Conus recluzianus. 2008 Poppe, G. T., Tagaro, S. P. & Fraussen K. – A New Nassaria from the Philippines. 2008 Poppe, G. T., – New Fissurellidae, Epitoniidae, Aclididae, Mitridae and Costellariidae from the Philippines. 2008 Poppe, with the collaboration of 23 authors "in Poppe": Philippines Marine Mollusks Vol. IPoppe, G.T. (2008). Philippine marine mollusks: I. (Gastropoda - Part I). ConchBooks: Hackenheim. . 2008 Poppe, with the collaboration of 17 authors "in Poppe": Philippines Marine Mollusks Vol. IIPoppe, G.T. (2008). Philippine marine mollusks: II. (Gastropoda - Part 2). ConchBooks: Hackenheim. . 2009 Poppe, G. T – New Taxonomic Methods in Conchology. 2009 Poppe, G. T, Tagaro, S.P. & Vilvens, C. – A New Clanculus (Trochidae) from the Philippines. With additional notes and new records of Trochidae-species in the Archipelago. 2009 Poppe, G. T & Tagaro, S.P. – A Spectacular New Conus (Conidae) from the Philippines. 2009 Poppe, G. T, Tagaro, S.P. & Terryn, Y. – New Terebridae from the Philippines. 2009 Poppe, G. T. & Groh, K. – A New Species of Trimusculus (Gastropoda: Eupulmonata: Trimusculidae) from the Central Philippines. 2009 Poppe, G. T, Tagaro, S.P. & Salisbury, R. – New Species of Mitridae and Costellariidae from the Philippines. With additional information on the Philippine Species in these families. 2009 Poppe G. T. – Conidae in the Philippine Marine Mollusks Volume II. 2009 Seronay, R. A. et al. - Accessing novel conoidean venoms: Biodiverse lumun-lumun marine communities, an untapped biological and toxinological resource.Toxicon 56, 1257-1266 - https://www.researchgate.net/publication/40683075_Seronay_R._A._et_al._Accessing_novel_conoidean_venoms_Biodiverse_lumun-lumun_marine_communities_an_untapped_biological_and_toxinological_resource._Toxicon_56_1257-1266 2010 Poppe, G. T – In Memoriam of Emmanuel Guillot de Suduiraut. 2010 Poppe, G. T. & Tagaro, S.P. – New Species of Haloceratidae, Columbellidae, Buccinidae, Mitridae, Costellariidae, Amathinidae and Spondylidae from the Philippines. 2010 Poppe, with the collaboration of 9 authors "in Poppe": Philippines Marine Mollusks vol. IIIPoppe, G.T. (2010). Philippine marine mollusks: III. (Gastropoda Part 3 & Bivalvia Part 1). ConchBooks: Hackenheim. . 665 pp 2011 Poppe, G. T. (Translation P. Bail) – Emmanuel Guillot de Suduiraut. (1938-2010). 2011 Philippine Marine Mollusks – Volume IV – Guido T. Poppe with the collaboration of 13 authors "in Poppe". 676 pp. pls. 1015–1315.Poppe, G.T. (2010). Philippine marine mollusks: IV. (Bivalvia Part 2 & Scaphopoda, Polyplacophora, Cephalopdoa & Addenda). ConchBooks: Hackenheim. . 675 pp 2011 Poppe, G. T. & Tagaro, S.P. – The Egg Case of Melo broderipii. 2011 Poppe, G. T., Tagaro, S.P.& Chino, M. – Two new Rictaxiella (Gastropoda: Bullinidae) from the Philippines. 2011 Poppe, G. T. & Tagaro, S.P. – A new subspecies of Conus nobilis Linnaeus, 1758 from Solor Island, Indonesia. 2011 Poppe, G. T – A Listing of Philippine Marine Molluks V06-1. 2011 Poppe, G. T., Tagaro, S. P. & Bail, P. - Notes on the genus Cymbiola in the Philippines, with the redefinition of Cymbiola cathcartiae Reeve, 1856 and the description of Cymbiola laminusa n. sp. - Visaya vol. 3(4) 2011 Poppe, G. T., Tagaro, S. P. & Sarino, J. C. - Two New Species of Fissurellidae from Namibia. - Visaya vol. 3(4) 2012 Poppe, G. T – A Listing of Philippine Marine Molluks V07-2.Conchology.be - Visaya.net 28 August 2012 2012 Poppe, G. T., Tagaro, S. P. & Sarino, J. C. - A new Ceratoxancus (Gastropoda: PTYCHATRACTIDAE), from the Philippines. - Visaya vol. 3(5) 2012 Poppe, G. T., Monnier, E., Tagaro, S. P. - New Conidae from the Central Philippines. - Visaya vol. 3(5) 2012 Poppe, G. T., Tagaro, S. P., Crookshanks, D., Groh, K. & Sarino J. - A Statement on the Land Snails of Cebu. - Visaya vol. 3(6) 2013 Poppe, G., Tagaro, S. & Groh, K. - A New Species of Contradusta (GASTROPODA: CYPRAEIDAE) from the Philippines. - Visaya vol. 4(1) 2014 Stahlschmidt, P., Poppe, G. T. & Chino, M. - Description of Seven New Daphnella species from the Philippines. - Visaya vol. 4(2) 2014 Dekkers, A., Herrmann, M., Poppe, G. T. & Tagaro, S. P. - Three New Species of Subcancilla from the Pacific Ocean. (Gastropoda: MITRIDAE). - Visaya vol. 4(2) 2014 Poppe, G. T., Poppe, P., Tagaro, S.P - 1000 Shells - Exceptionals from the Philippines. ConchBooks: Hackenheim, 2014 Poppe, G. T. - The Illustrated Catalog of the Living Cone Shells - A Review. - The Cone Collector 2014 Poppe, G. T. - A Selected bibliography for Conus Lovers. - The Cone Collector