List of publications - Günter Purschke

 

Lehmacher, C., Ramey-Balci, P.A., Wolff, L.I., Fiege, D., Purschke, G. 2016. Ultrastructural differences in presumed photoreceptive organs and molecular data as a means for species discrimiation in Polygordius (Annelida, Protodriliformia, Polygordiidae) Organisms Diversity and Evolution (DOI 10.1007/s13127-016-0272-8).

Schmidt-Rhaesa, A., Harzsch, S. Purschke, G. 2016. (eds.) Structure and Evolution of Invertebrate Nervous Systems. Oxford University Press, Oxford. 748 pp.

Schmidt-Rhaesa, A., Harzsch, S. Purschke, G. 2016. Introduction. In: Schmidt-Rhaesa, A., Harzsch, S. Purschke, G. (eds.) Structure and Evolution of Invertebrate Nervous Systems. Oxford University Press, Oxford. Pp. 1-3.

Purschke, G. (2016) Annelida: Basal groups and Pleistoannelida. In: Schmidt-Rhaesa, A., Harzsch, S. Purschke, G. (eds.) Structure and Evolution of Invertebrate Nervous Systems. Oxford University Press, Oxford. Pp. 254-312.

Purschke, G., Nowak, K.H. 2015. Ultrastructure of pigmented eyes in Dorvilleidae (Annelida, Errantia, Eunicida) and their importance for understanding the evolution of eyes in polychaetes. Acta Zoologica (Stockholm) 96: 67-81. [doi: 10.1111/azo.12052{2013}]

Struck, T.H., Golombek, A., Weigert, A., Franke, F.A., Westheide, W., Purschke, G., Bleidorn, C., Halanych, K.M. 2015. The evolution of annelids reveals two adaptive routes to the interstitial realm. Current Biology 25: 1993-1999.

Capa, M., Bakken, T., Purschke, G. 2015. Sphaerodoridae Malmgren, 1867. In: Westheide, W., Purschke, G. (eds.) Handbook of Zoology. Annelida. DeGruyter, Berlin (in press) http://www.degruyter.com/view/Zoology (published online ahead of print).

Lehmacher, C., Fiege, D., Purschke, G. 2014. Immunohistochemical and ultrastructural analysis of the muscular and nervous systems in the interstitial polychaete Polygordius appendiculatus (Annelida). Zoomorphology 133: 21–41 [DOI: 10.10007/s00435-013-0203-6]

Weigert, A., Helm, C., Meyer, M., Nickel, B., Arendt, D., Hausdorf, B., Santos, S.R., Halanych, K.M., Purschke, G., Bleidorn, C., Struck, T.H. 2014. Illuminating the base of the annelid tree using transcriptomics. Mol. Biol. Evol. 31: 1391-1401. [doi:10.1093/molbev/msu080]

Struck, T. H., Purschke, G., Dordel, J., Hösel, C., Nesnidal, M. P., Fisse, F., Bleidorn, C., Paul, C., Hill, N., Tiedemann, R., Selbig, J. & Hartmann, S. 2014. Phylogeny and evolution of Annelida based on molecular data. In: Wägele, W., Bartolomaeus, T. (eds.) Deep Metazoan Phylogeny: The Backbone of the Tree of Life. Walter de Gruyter, Berlin. Pp. 143-160.

Purschke, G., Bleidorn, C., Struck, H. 2014. Systematics, Evolution and Phylogeny of Annelida – a morphological Perspective. Memoirs of Museum Victoria 71: 247-269.

Ramey-Balci, P.A., Fiege, D., Purschke, G. 2013. 7.5. Polygordiida: Polygordiidae Czerniavsky, 1881. In: Westheide, W., Purschke, G. (eds.) Handbook of Zoology. Annelida. DeGruyter, Berlin (Zoology Online. Walter de Gruyter, Berlin, 2012. http://www.degruyter.com/view/Zoology (published online ahead of print)).

Westheide, W., Purschke, G. 2013. Annelida. In: W. Westheide & G.E. Rieger (eds.): Lehrbuch der Speziellen Zoologie Band 1 Springer, Heidelberg. Pp. 357-415.

Golombek, A., Tobergte, S., Nesnidal, M., Purschke, G., Struck, T. H. 2013. Mitochondrial genomes to the rescue – Diurodrilidae in the myzostomid trap. Mol. Phylogenet. Evol. 68: 312-326.

Döring, C., Gosda, J., Tessmar-Raible, K., Hausen, H., Arendt, D., Purschke, G. 2013. Evolution of clitellate phaosomes from rhabdomeric photoreceptor cells of polychaetes – a study in the leech Helobdella robusta (Annelida, Sedentaria, Clitellata). Front. Zool. 10: 52 doi 10.1186/1742-9994-10-52.

Vortsepneva, E., Ivanov, D., Purschke, G., Tzetlin, A. 2013. Morphology of the jaw apparatus in Patellogastropoda (Mollusca, Gastropoda) with special reference to Testudinalia tesulata (Lottiidae). Zoomorphology 132: 359-377 [DOI 10.1007/s00435-013-0199-y]

Struck TH, Paul C, Hill N, Hösel C, Kube M, Lieb B, Meyer A, Tiedemann R, Purschke G, Bleidorn C 2011. Phylogenomic analyses unravel annelid evolution. Nature 471: 95- 98.

Purschke G 2011. Sipunculid-like ocellar tubes in a polychaete, Fauveliopsis cf. adriatica, (Annelida, Fauveliopsidae) – implications for eye evolution. Inv Biol 130: 115-128.

Beermann A, Giere O, Purschke, G 2011. Ultrastructure of the ventral pharynx in the interstitial annelid Questa paucibranchiata (Orbiniidae) and its phylogenetic importance. Zoomorphology 130: 167-180. (DOI: 10.1007/s00435-011-0129-9)

Thiel D, Purschke G, Böggemann M 2011. Abyssal Fauveliopsidae (Annelida) from the South East Atlantic. J Nat Hist 45: 923-937.

Paululat A, Purschke G 2011. Wörterbuch der Zoologie. 8. Auflage. Spektrum Akademischer Verlag, Heidelberg.

Richter S, Loesel R, Purschke G, Schmidt-Rhaesa A, Scholtz G, Stach T, Vogt L, Wanninger A, Brenneis G, Döring C, Faller S, Fritsch M, Grobe M, Hausen H, Heuer CM, Kaul S, Møller OS, Müller CHG, Rieger V, Rothe BH, Stegner MEJ, Harzsch S 2010. Invertebrate neurophylogeny - suggestions of terms and definitions for a neuroanatomical glossary. Frontiers in Zoology 7: 29.

Filippova A, Purschke G, Tzetlin AB, Müller MCM 2010. Muscular set up in polychaetes: a comparison between Myrianida prolifer (Syllidae) and Sphaerodoropsis sp. (Sphaerodoridae). Inv Biol 129: 184-198. (DOI: 10.1111/j.1744-7410.2010.00191.x)

Dordel J, Fisse F, Purschke G, Struck TH 2010. Phylogenetic position of Sipuncula derived from multi-gene and phylogenomic data and its implication for the evolution of segmentation. J zool Syst Evol Res 48: 197-207. (doi: 10.1111/j.1439- 0469.2010.00567.x)

Backhaus K, Heilmann CJ, Sorgo AG, Purschke G, de Koster CG, Klis FM, Heinisch JJ 2010. A systematic study of the cell wall composition of Kluyveromyces lactis. Yeast 27: 647-660.

Westheide W, Purschke G 2010 (ongoing). Editors Handbook of Zoology. Annelida. DeGruyter, Berlin

Wilkens V, Purschke G 2009. Central nervous system and sense organs with special reference to photoreceptor-like sensory elements in Polygordius appendiculatus (Annelida), an interstitial polychaete with uncertain phylogenetic affinities. Inv Biol 128: 46-64. (DOI: 10.1111/j.1744-7410.2008.00145.x)

Wilkens V, Purschke G 2009. Pigmented eyes, photoreceptor-like sense organs and central nervous system in the polychaete Scoloplos armiger (Orbiniidae, Annelida) and their phylogenetic importance. J Morphol 270: 1296-1310. (DOI: 10.1002/jmor.10758)

Suschenko D, Purschke G 2009. Ultrastructure of pigmented adult eyes in errant polychaetes (Annelida) - implications for annelid evolution. Zoomorphology 128: 75-96. (DOI 10.1007/s00435-008-0075-3)

Hunnekuhl VS, Bergter A, Purschke G, Paululat A 2009. Embryonic Patterns of Body Wall Musculature - Myogenesis in the Crassiclitelllate Eisenia andrei (Annelida, Clitellata). J Morphol 270: 1122-1136. (DOI: 10.1002/jmor.10749)

Arendt D, Hausen H, Purschke G 2009. The “division of labour” model of eye evolution. Phil Trans R Soc B 364: 2809-2817. (DOI: 10.1098/rstb.2009.0104).

Preuß A, Gansloßer U, Purschke G, Magiera U 2009. Bear-hybrids: behaviour and phenotype. Zool Garten NF 78: 204-220.

Vortsepneva E, Tzetlin A, Purschke G, Mugue N, Haß-Cordes E, Zhadan A 2008. The parasite polychaete known as Asetocalamyzas laonicola (Calamyzidae) is in fact the dwarf male of spionid Scolelepis laonicola (comb. nov.). Inv Biol 127: 403-416. (DOI: 10.1111/j.1744-7410.2008.00137.x)

Struck TH, Nesnidal MP, Purschke G, Halanych KM 2008. New approaches to detect possibly saturated characters in 18S and 28S sequences and their influence on the phylogenetic reconstruction of Annelida (Lophotrochozoa). Mol Phylogenet Evol 48: 628-645.

Purschke G, Hausen H 2007. Lateral organs in sedentary polychaetes (Annelida) – Ultrastructure and phylogentic significance of an insufficiently known sense organ. Acta Zool (Stockh) 88: 23-39.

Purschke G, Jördens J 2007. Male genital organs in the eulittoral meiofaunal polychaete Stygocapitella subterranea (Annelida, Parergodrilidae) – ultrastructure, functional and phylogenetic significance. Zoomorphology 126: 283-297.

Struck TH, Purschke G, Halanych, KM 2006. Phylogeny of Eunicida (Annelida) and exploring data congruence using a partition addition bootstrap alteration (PABA) approach. Syst Biol 55: 1-20.

Böggemann M, Purschke G 2006. Ultrastructure of the proboscidial papillae in some Goniadidae species (Annelida: „Polychaeta“). Cah Biol Mar 47: 157-167.

Tzetlin AB, Purschke G 2006. Fine structure of the pharyngeal apparatus of the pelagospera larva in Phascolosoma agassizii (Sipuncula) and its phylogenetic significance. Zoomorphology 125: 109-117. (DOI:10.1007/s00435-006-0025-x)

Purschke G, Müller MCM 2006. Evolution of body wall musculature. Integr Comp Biol 46: 497-507. (DOI:10.1093/icb/icbj053)

Purschke G, Arendt D, Hausen H, Müller MCM 2006. Photoreceptor cells and eyes in Annelida. In: Harzsch S, Melzer R (eds) Origin and evolution of arthropod visual systems. Arthropod Structure and Development 35: 211-230.

Filipova A, Purschke G, Tzetlin AB, Müller MCM 2006. Three-dimensional reconstruction of the F-actin musculature of Dorvillea kastajani (Dorvilleidae, Polychaeta) by means of phalloidin-labelling and cLSM. Sci Mar 70 Supplement 3: 293-300.

Purschke G 2006. Problematic Annelid Groups. In: GW Rouse, F Pleijel (eds) Reproductive Biology and Phylogeny of Annelida Vol. 4 Science Publishers, Enfield, Jersey, Plymouth. Pp 639-667.

Purschke G 2006. Pogonophora. In: W Westheide, RM Rieger (eds) Lehrbuch der Speziellen Zoologie Gustav Fischer, Stuttgart. pp 406-415.

Purschke G 2006. Echiura. In: W Westheide, RM Rieger (eds) Lehrbuch der Speziellen Zoologie. Gustav Fischer, Stuttgart. pp 416-420.

Purschke G 2006. Sipuncula. In: W Westheide, RM Rieger (eds) Lehrbuch der Speziellen Zoologie. Gustav Fischer, Stuttgart. pp 363-368.

Böggemann M, Purschke G 2005. Abyssal benthic Syllidae (Annelida: Polychaeta) from the Angola Basin. Org Div Evol 5: 221-226.

Filipova A, Purschke G, Tzetlin AB, Müller MCM 2005. Reconstruction of the musculature of Magelona cf. mirabilis (Magelonidae) and Prionospio cirrifera (Spionidae) (Polychaaeta, Annelida) by phalloidin labelling and cLSM. Zoomorphology 124: 1-8.

Struck TH, Purschke G 2005. The sistergroup relationship of Aeolosomatidae and Potamodrilidae – a molecular phylogenetic approach based on 18S rDNA and Cytochrome Oxidase I. Zool Anz 243: 281-293.

Purschke G, Fursman M 2005. Spermatogenesis and Spermatozoa in Stygocapitella subterranea (Annelida, Parergodrilidae), an enigmatic supralittoral polychaete. Zoomorphology 124: 137-148.

Struck TH, Purschke G, Halanych KM 2005. A scaleless scale worm? Molecular evidence for the phylogenetic placement of Pisione remota (Pisionidae, Annelida) Mar Biol Res 1: 243-253.

Struck TH, Halanych KM, Purschke G 2005. Dinophilidae (Annelida) is not a progenetic Eunicida; Evidence from 18S and 28S rDNA. Mol Phylogenet Evol 37: 619-623.

Purschke G 2005. Sense organs in polychaetes (Annelida). In: T Bartolomaeus & G Purschke (eds) Morphology, Molecules, Evolution and Phylogeny in Polychaeta and related Taxa. Hydrobiologia 535/536: 53-78.

Tzetlin AB, Purschke G 2005. Pharynx and Intestine. In: T Bartolomaeus & G Purschke (eds) Morphology, Molecules, Evolution and Phylogeny in Polychaeta and related Taxa. Hydrobiologia 535/536: 199-225.

Rieger RM, Purschke G 2005. The coelom and the origin of the annelid body plan. In: T Bartolomaeus & G Purschke (eds) Morphology, Molecules, Evolution and Phylogeny in Polychaeta and related Taxa. Hydrobiologia 535/536: 127-137.

Bartolomaeus T, Purschke G, Hausen H 2005. Polychaete phylogeny based on morphological data – a comparison of current attempts. In: T Bartolomaeus & G Purschke (eds) Morphology, Molecules, Evolution and Phylogeny in Polychaeta and related Taxa. Hydrobiologia 535/536: 341-356.

Bartolomaeus T, Purschke G (eds) 2005. Morphology, Molecules, Evolution and Phylogeny in Polychaeta and related Taxa. Hydrobiologia 535/536: vii-xii, 1-387.

Jouin-Toulmond C, Purschke G 2004. Ultrastructural study of the spermatozoa of Parenterodrilus taenioides (Protodrilida: „Polychaeta“ and its phylogenetic significance in the Protodrilida. Zoomorphology 123: 139-146.

Jördens J, Struck T, Purschke G 2004. Phylogenetic inference regarding Parergodrilidae and Hrabeiella periglandulata („Polychaeta“, Annelida) based on 18S rDNA, 28S rDNA and COI sequencens. J Zool Syst Evol Res 42: 270-280.

Purschke G 2003. Ultrastructure of phaosomous photoreceptors in Stylaria lacustris (Naididae, „Oligochaeta“, Clitellata) and their importance for the position of the Clitellata in the phylogenetic system of the Annelida. J zool Syst Evol Res 41: 100- 108.

Purschke G 2003. Is Hrabeiella periglandulata (Annelida, „Polychaeta“) the sister group of Clitellata? Evidence from an ultrastructural analysis of the dorsal pharynx in H. periglandulata and Enchytraeus minutus (Annelida, Clitellata). Zoomorphology 122: 55-66.

Filippova AV, Tzetlin AB, Purschke G 2003. Morphology and ultrastructure of the anterior end of Diplocirrus longisetosus Marenzeller, 1890 (Flabelligeridae, Polychaeta, Annelida). Hydrobiologia 496: 215-223.

Tzetlin AB, Zhadan A, Ivanov I, Müller MC, Purschke G 2002. On the absence of circular muscle elements in the body wall of Dysponetus pygmaeus (Chrysopetalidae, “Polychaeta”, Annelida). Acta Zool (Stockh) 83: 81-85.

Purschke G, Hessling R 2002. Sense organs and central nervous system in the interstitial limnetic annelid Potamodrilus fluviatilis. Zool Anz 241: 19-35.

Tzetlin AB, Dahlgren T, Purschke G 2002. Ultrastructure of the body wall, body cavity, nephridia and spermatozoa in four species of the Chrysopetalidae (Annelida) Zool Anz 241: 37-55.

Purschke G 2002. Male genital organs, spermatogenesis and spermatozoa in the enigmatic terrestrial polychaete Parergodrilus heideri (Annelida, Parergodrilidae). Zoomorphology 121: 125-138.

Struck T, Westheide W, Purschke G 2002. Progenesis in Eunicida („Polychaeta“, Annelida) – separate evolutionary events? Evidence from molecular data. Mol Phyl Evol 25: 190- 199.

Struck T, Hessling R, Purschke G 2002. The systematic position of two enigmatic oligochaete-like taxa of the Polychaeta based on molecular data: Aeolosomatidae and Parergodrilidae. J zool Syst Evol Res 40: 155-163.

Purschke G 2002. On the ground pattern of the Annelida. Org Div Evol 2: 181-196.

Kuper M, Purschke G 2001. The excretory organs in Sphaerodorum flavum (Phyllodocida, Sphaerodoridae) – a rare case of co-occurrence of protonephridia, coelom and blood vascular system in Annelida. Zoomorphology 120: 191-203.

Böggemann M, Fiege D, Purschke G 2000. Ultrastructure of the proboscidial papillae in some Glycera species (Annelida: Polychaeta: Glyceridae). Cah biol Mar 41: 143-153.

Purschke G 2000. Sense organs and central nervous system in an enigmatic terrestrial polychaete, Hrabeiella periglandulata (Annelida) – implications for annelid evolution. Inv Biol 119: 329-341.

Hessling R, Purschke G 2000. Immunohistochemical (cLSM) and ultrastructural analysis of the central nervous system and sense organs in Aeolosoma hemprichi (Annelida). Zoomorphology 120: 67-78.

Purschke G, Hessling R, Westheide W 2000. The phylogenetic position of the Clitellata and the Echiura – On the problematic assessment of absent characters. J Zool Syst Evol Res 38: 165-173.

Purschke G 1999. Terrestrial polychaetes – models for the evolution of the Clitellata (Annelida)? Hydrobiologia 406: 87-99.

Westheide W, McHugh D, Purschke G, Rouse GW 1999. Systematization of the Annelida: different approaches. Hydrobiologia 402: 291-307.

Purschke G, Wolfrath F, Westheide W 1997. Ultrastructure of the nuchal organ and cerebral organ in Onchnesoma squamatum (Sipuncula, Phascolionidae). Zoomorphology 117: 23-31.

Purschke G 1997. Ultrastructure of nuchal organs in polychaetes (Annelida) - New results and review. Acta Zool (Stockh) 78: 123-143.

Purschke G, Tzetlin A 1996: Dorsolateral ciliary folds in the polychaete foregut: structure, prevalence and phylogenetic significance. Acta Zool (Stockh) 77: 33-49.

Purschke G 1996. Pogonophora. In: W Westheide, RM Rieger (eds) Lehrbuch der Speziellen Zoologie. Gustav Fischer, Stuttgart. pp 383-395.

Purschke G 1996. Echiura. In: W Westheide, RM Rieger (eds) Lehrbuch der Speziellen Zoologie. Gustav Fischer, Stuttgart. pp 345-349.

Purschke G 1996. Sipuncula. In: W Westheide, RM Rieger (eds) Lehrbuch der Speziellen Zoologie. Gustav Fischer, Stuttgart. pp 331-336.

Bührmann C, Westheide W, Purschke G 1996. Ultrastructure of the genital organs in the interstitial syllid Petitia amphophthalma (Annelida, Polychaeta) Acta Zool (Stockh) 77: 201-211.

Bührmann C, Westheide W, Purschke G 1996. Spermatogenesis and sperm ultrastructure in the interstitial syllid Petitia amphophthalma (Annelida, Polychaeta). Ophelia 45: 81- 100.

Westheide W, Purschke G 1996. Proacrosome and acrosome of the spermatozoon in Acanthobdella peledina (Annelida: Clitellata). Inv Repr Dev 29: 223-230.

Westheide W, Purschke G 1996. Leptonerilla diplocirrata, a new genus and species of interstitial polychaetes from the island of Hainan, South China (Nerillidae). Proc Biol Soc Wash 109: 586-590.

Purschke G, Müller MC 1996: Structure of prostomial photoreceptor-like sense organs in Protodriloides species (Polychaeta, Protodrilida). Cah Biol Mar 37: 205-219.

Purschke G, Ding Z, Müller MC 1995. Ultrastructural differences as a taxonomic marker: the segmental ocelli of Polyophthalmus pictus and Polyophthalmus qingdaoensis sp.n. (Polychaeta, Opheliidae). Zoomorphology 115: 229-241.

Westheide W, Purschke G, Mangerich W 1994. Sinohesione genitaliphora gen. et sp.n. (Polychaeta, Hesionidae), an interstitial annelid with unique dimorphous external genital organs. Zool Scr 23: 95-105.

Purschke G, Jouin-Toulmond C 1994. Ultrastructure of sense organs and the central nervous system in Parenterodrilus taenioides and their phylogenetic significance in the taxon Protodrilida (Annelida, Polychaeta). In: J-C Dauvin, L Laubier, DJ Reish (eds) Actes de la 4ème Conference internationale des Polychètes. Mem Mus natn Hist nat 162: 119-128.

Purschke G 1993. Structure of the prostomial appendages and the central nervous system in the Protodrilida (Polychaeta). Zoomorphology 113: 1-20.

Purschke G, Jouin-Toulmond C 1993. Ultrastructure of presumed unpigmented ocelli in Parenterodrilus taenioides (Polychaeta, Protodrilidae) and their phylogenetic significance. Acta Zool (Stockh) 74: 247-256.

Purschke G, Westheide W, Rohde D, Brinkhurst RO 1993. Morphological reinvestigation and phylogenetic relationship of Acanthobdella peledina (Annelida, Clitellata). Zoomorphology 113: 91-101.

Purschke G 1992. Ultrastructural investigations of presumed photoreceptive organs in two Saccocirrus species (Polychaeta, Saccocirridae). J Morphol 211: 7-21.

Westheide W, Purschke G 1992. Microphthalmus simplicichaetosus (Annelida: Polychaeta), a new hesionid from the Nordwestern American Pacific coast with exclusively simple chaetae. Proc Biol Soc Wash 105: 132-135.

Tzetlin AB, Purschke G, Westheide W, Saphonov MV 1992. Ultrastructure of enteronephridia and general description of the alimentary canal in Trochonerilla mobilis and Nerillidium troglochaetoides (Polychaeta, Nerillidae). Acta Zool (Stockh) 73: 163-176.

Purschke G, Hagens M, Westheide W 1991. Ultrahistopathology of enchytraeid oligochaetes (Annelida) after exposure to pesticides - a means of identification of sublethal effects? Comp Biochem Physiol 110C: 119-122.

Westheide W, Purschke G, Middendorf K 1991. Spermatozoal ultrastructure of the taxon Enchytraeus (Annelida, Oligochaeta) and its significance for species discrimination and identification. Z zool Syst Evolutionsforsch 29: 323-342.

Purschke G 1990. Comparative electron microscopic investigation of the nuchal organs in Protodriloides, Protodrilus and Saccocirrus (Annelida, Polychaeta). Can J Zool 68: 325-338.

Purschke G 1990. Fine structure of the so-called statocysts in Protodrilus adhaerens (Protodrilida, Polychaeta). Zool Anz 224: 286-296.

Purschke G 1990. Ultrastructure of the "statocysts" in Protodrilus species (Polychaeta): Reconstruction of the cellular organization with morphometric data from receptor cells. Zoomorphology 110: 91-104.

Brockmeyer V, Middendorf C, Purschke G, Rötting T, Westheide W 1990. Lebenszyklus-, Ultrastruktur-, Gesamtprotein- und Isoenzymuntersuchungen als Methoden der Taxonomie schwer identifizierbarer terrestrischer Enchytraeidenarten (Oligochaeta, Annelida). Verh Ges Ökol 18: 793-798.

Purschke G 1988. Anatomy and ultrastructure of ventral pharyngeal organs and their phylogenetic importance in Polychaeta (Annelida). V. The pharynx of the Ctenodrilidae and Orbiniidae. Zoomorphology 108: 119-135.

Westheide W, Purschke G 1988. Organism processing. In: RP Higgins, H Thiel (eds) Introduction to the study of meiofauna. Smithsonian Institution Press, Washington. pp 146-160.

Purschke G, Jouin C 1988. Anatomy and ultrastructure of ventral pharyngeal organs of Saccocirrus (Saccocirridae) and Protodriloides (Protodriloidae fam. n.) with remarks on the phylogenetic relationships within the Protodrilida (Annelida: Polychaeta). J Zool 215: 405-432.

Purschke G 1988. Pharynx. In: W. Westheide, C.O. Hermans (eds): The ultrastructure of Polychaeta. Microfauna Marina 4: 177-197.

Purschke G 1987. Anatomy and ultrastructure of ventral pharyngeal organs and their phylogenetic importance in Polychaeta (Annelida). IV. The pharynx of the Dorvilleidae. Acta Zool (Stockh) 68: 83-105.

Purschke G 1987. Anatomy and ultrastructure of ventral pharyngeal organs and their phylogenetic importance in Polychaeta (Annelida). III. The pharynx of the Parergodrilidae. Zool Jb Anat 115: 331-362.

Purschke G 1986. Ultrastructure of the nuchal organ in the interstitial polychaete Stygocapitella subterranea (Parergodrilidae). Zool Scr 16: 13-20.

Purschke G 1985. Anatomy and ultrastructure of ventral pharyngeal organs and their phylogenetic importance in Polychaeta (Annelida). II. The pharynx of the Nerillidae. Microfauna Marina 2: 23-60.

Purschke G 1985. Anatomy and ultrastructure of ventral pharyngeal organs and their phylogenetic importance in Polychaeta (Annelida). I. The pharynx of the Dinophilidae. Zoomorphology 105: 223-239.

Purschke G 1981. Tolerance to freezing and supercooling of interstitial Turbellaria and Polychaeta from a sandy tidal beach of the island of Sylt (North Sea). Mar Biol 63: 257-267.