S

Sänger, H. 1900. Peripatus capensis Sr. et Peripatus leuckartii, n. sp. Bulletin de la Société Philomathique de Paris [Serie 9] 3: 9-36.

Saint-Remy, G. 1889. Sur la structure du cerveau chez les Myriopodes et les Arachnides. Revue Biologique du Nord de la France 2: 41-55.

Saita, A. & Camatini, M. 1976. Body muscle cells of Peripatopsis: A new contractile model. Journal of Cell Biology 70: 23A.

Sampaio-Costa, C., Chagas-Junior, A. & Baptista, R.L.C. 2009. Brazilian species of Onychophora with notes on their taxonomy and distribution. Zoologia 26: 553-561.

Sanchez, S. 1958. Cellules neurosécrétrices et organes infracérébraux de Peripatopsis moseleyi Wood (Onychophores) et neurosécrétion chez Nymphon gracile Leach (Pycnogonides). Archives de Zoologie Experimentale et Generale [Notes et Revue] 96: 57-62.

Sands, C.J., Lancaster, M.L., Austin, J.J. & Sunnucks, P. 2009. Single copy nuclear DNA markers for the onychophoran Phallocephale tallagandensis. Conservation Genetics Resources 1: 17-19.

Santana, G.G., de Oliveira Almeida, W., da Nóbrega Alves, R.R. & Vasconcellos, A. 2008. Extension of the northern distribution of Onychophora in the Brazilian Atlantic Forest. Biotemas 21: 161-163.

Sawyer, R.T. 1984. Arthropodization in the Hirudinea: Evidence for a phylogenetic link with insects and other Uniramia? Zoological Journal of the Linnean Society 80: 303-322.

Schmidt-Rhaesa, A. 2006. Onychophora (Stummelfüßer). In: Brockhaus Enzyklopädie der Tiere - Fazination Natur. C. Lüter and A. Schmidt-Rhaesa, eds. Bibliographisches Institut & F.A. Brockhaus AG, Mannheim. 188-191.

Schmidt-Rhaesa, A., Bartolomaeus, T., Lemburg, C., Ehlers, U. & Garey, J.R. 1998. The position of the Arthropoda in the phylogenetic system. Journal of Morphology 238: 263-285.

Schneider, K.C. 1902. X. Arthropoda. A. Protracheata. In: Lehrbuch der Vergleichenden Histologie der Tiere Gustav Fischer, Jena, Germany. 443-457.

Schoenemann, B., Liu, J.-N., Shu, D.-G., Han, J. & Zhang, Z.-F. 2009. A miniscule optimized visual system in the Lower Cambrian. Lethaia 42: 265-273.

Schopf, T.J.M. 1984. Rates of evolution and the notion of "living fossils". In: Annual Review of Earth and Planetary Sciences, Volume 12. G. W. Wetherill, A. L. Albee, and F. G. Stehli, eds. Annual Reviews, Inc., Palo Alto, California, USA. 245-292.

Schram, F.R. 1978. Arthropods: A convergent phenomenon. Fieldiana Geologica 39: 61-108.

Schreiber, G. 1976. Variability of the DNA content during phylogenesis. II. New data on DNA content per nucleus in the animal series. Ciência e Cultura [São Paulo] 28: 963-967.

Schreiber, G., Simoes, L.C.G. & Marques da Silva, I. 1963. Cytological and cytochemical researches in Peripatus acacioi Marcus & Marcus. Proceedings of the International Congress of Zoology 16: 277.

Schrock, R.R. & Twenhofel, W.H. 1953. Onychophora. In: Principles of Invertebrate Paleontology (2nd Ed.) [McGraw Hill Series in Geology] McGraw-Hill Publishers, New York. 531-535.

Schürmann, F.W. & Sandeman, D.C. 1976. Giant fibres in the ventral nerve cord of Peripatoides leuckarti (Onychophora). Naturwissenschaften 63: 580-581.

Schwab, K.W. 1966. Microstructure of some fossil and recent scolecodonts. Journal of Paleontology 40: 416-423.

Sclater, W.L. 1887. Notes on the Peripatus of British Guiana. Proceedings of the Zoological Society of London 1887: 130-137.

Sclater, W.L. 1888. On the early stages of the development of South American species of Peripatus. Quarterly Journal of Microscopical Science 28: 343-363.

Scorza, J.V. 1953. Contribució al estudio de los Peripatus Caribes (Epiperipatus) de Venezuela, con adición de una nueva especie. Revista de sanidad y asistencia social 18: 783-788.

Scott, I.A.W. & Rowell, D.M. 1991. Population biology of Euperipatoides leuckartii (Onychophora: Peripatopsidae). Australian Journal of Zoology 39: 499-508.

Sedgwick, A. 1884. On the origin of metameric segmentation and some other morphological questions. Quarterly Journal of Microscopical Science 24: 43-82.

Sedgwick, A. 1885. On the fertilised ovum and formation of the layers of the South African Peripatus. Proceedings of the Royal Society of London 39: 239-244.

Sedgwick, A. 1885. The development of Peripatus capensis. Part I. Quarterly Journal of Microscopical Science 25: 449-468.

Sedgwick, A. 1885. The development of Peripatus capensis. Proceedings of the Royal Society of London 38: 354-361.

Sedgwick, A. 1886. The development of the Cape species of Peripatus. Part II. Quarterly Journal of Microscopical Science 26: 175-212.

Sedgwick, A. 1887. The development of the Cape species of Peripatus. Part III. On the changes from stage A to stage F. Quarterly Journal of Microscopical Science 27: 467-550.

Sedgwick, A. 1888. A monograph on the species and distribution of the genus Peripatus (Guilding). Quarterly Journal of Microscopical Science 28: 431-493.

Sedgwick, A. 1888. The development of the Cape species of Peripatus. Part IV. The changes from stage G to birth. Quarterly Journal of Microscopical Science 28: 373-396.

Sedgwick, A. 1888. A monograph of the development of Peripatus capensis. [reprinted from Q.J.M.S. (2) XXV-XXVIII]. Stud. Morph. Lab. Cambridge IV: 1-13.

Sedgwick, A. 1889. Peripatus in Australia. Nature 39: 412-413.

Sedgwick, A. 1891. An oviparous species of Peripatus. Nature 44: 494.

Sedgwick, A. 1891. Note on a Peripatus from Natal. Proceedings of the Cambridge Philosophical Society 7: 250-251.

Sedgwick, A. 1895. Peripatus. In: Peripatus, Myriapods and Insects, pt. I. S. F. Harmer and A. E. Shipley, eds. MacMillan & Co., London. 3-26.

Sedgwick, A. 1908. The distribution and classification of the Onychophora. Quarterly Journal of Microscopical Science 52: 379-406.

Sedgwick, A. 1908. Relation between the geographical distribution and the classification of the Onychophora. Proceedings of the Cambridge Philosophical Society 14: 546.

Sedgwick, A. 1909. Class II. Onychophora. In: A Student's Textbook of Zoology Swan Sonnenschein and Co., London. 550-577.

Sedgwick, A. 1910. Peripatus papuensis. Nature 83: 369-370.

Sedgwick, A. 1959. Peripatus. In: Peripatus, Myriapods and Insects, pt. I, Reprint Edition ed. S. F. Harmer and A. E. Shipley, eds. Wheldon & Wesley, Codicote. 3-26.

Seifert, G. & Rosenberg, J. 1976. Feinstruktrur des "Sacculus" der Nephridien von Peripatoides leuckarti (Onychophora: Peripatopsidae). Entomologica Germanica 3: 202-211.

Seifert, G. & Rosenberg, J. 1977. Die Ultrastruktur der Nephrozyten von Peripatoides leuckarti (Saenger 1869) (Onychophora, Peripatopsidae). Zoomorphologie 86: 169-181.

Seifert, G. & Rosenberg, J. 1978. Feinstruktur der Herzwand des Doppelfüßers Oxidus gracilis (Diplopoda: Paradoxosomatidae) und allgemeine Betrachtungen zum Aufbau der Gefäße von Tracheata und Onychophora. Entomologica Germanica 4: 224-233.

Sharov, A.G. 1965. Origin and main stages of the arthropod evolution: I. From annelids to arthropods. Zoologicheskii Zhurnal 44: 803-817.

Sharov, A.G. 1965. On the dual characters of metamerism in Articulata. Zhurnal Obshchei Biologii 26: 619-622.

Sharov, A.G. 1991. Phylum Malacopoda. In: Fundamentals of Paleontology, Volume 9: Arthropoda, Tracheata, Chelicerata. B. B. Rohdendorf, ed. Amerind Publishing Co. Pvt. Ltd, New Delhi, India. 817-818.

Sharratt, N.J., Picker, M.D. & Samways, M.J. 2000. The invertebrate fauna of the sandstone caves of the Cape Peninsula (South Africa): Patterns of endemism and conservation priorities. Biodiversity and Conservation 9: 107-143.

Shaw, A.B. 1966. Paleontology of northwestern Vermont: X. Fossils from the (Cambrian) Skeels Corners Formation. Journal of Paleontology 40: 269-295.

Sheldon, L. 1887. On the development of Peripatus novae-zealandiae. Quarterly Journal of Microscopical Science 28: 205-237.

Sheldon, L. 1888. On the development of Peripatus novae-zealandiae. Quarterly Journal of Microscopical Science 29: 283-294.

Sheldon, L. 1888. Notes on the anatomy of Peripatus capensis and Peripatus novae-zealandiae. Quarterly Journal of Microscopical Science 28: 495-499.

Sheldon, L. 1890. The maturation of the ovum in the Cape and New Zealand species of Peripatus. Quarterly Journal of Microscopical Science 30: 1-29.

Sherbon, B. 2000. A study of the patterns of embryonic development in South African onychophorans (Peripatopsidae). Dissertation thesis, University of Leicester, United Kingdom. 1-246.

Sherbon, B.J. & Walker, M.H. 2004. A new species of Peripatopsis from South Africa, P. stelliporata, with observations on embryonic development and sperm degradation (Onychophora, Peripatopsidae). Journal of Zoology 264: 295-305.

Shrock, R.R. & Twenhofel, W.H. 1953. Phylum Onychophora. In: Principles of Invertebrate Paleontology McGraw-Hill Book Company, New York. 531-535.

Shubin, N., Tabin, C. & Carroll, S. 1997. Fossils, genes and the evolution of animal limbs. Nature 388: 639-648.

Sick, H. 1965. A fauna do Cerrado. Arquivos de Zoologia [São Paulo] 12: 71-93.

Sielfeld, W. 2000. Orden Onychophora, gusanos terciopelo, onicóforos. Programa de Biodiversidad, Universidad Arturo Prat - Iquique.

Siewing, R. 1960. Zum Problem der Polyphylie der Arthropoda. Zeitschrift für wissenschaftliche Zoologie 164: 238-270.

Siewing, R. 1980. Körpergliederung und phylogenetisches System. Zoologische Jahrbücher, Abteilung für Anatomie und Ontogenie der Tiere 108: 196-210.

Silva, J.R.M.C. & Coelho, M.P.D. 2000. Induced inflammatory process in Peripatus acacioi Marcus & Marcus (Onychophora). Journal of Invertebrate Pathology 75: 41-46.

Silvere, A.P. 1973. Origin and evolution of gall mites (Eriophyoidea) in light of their internal anatomy. In: Proceedings of the 3rd International Congress on Acarology. M. Daniel and B. Rosicky, eds. W. Junk BV Publishers, The Hague, Netherlands. 247-249.

Silvestri, F. 1899. Distribuzione geografica della Koenenia mirabilis Grassi ed altre Artropodi Peripatoides blainvillei (Blanch). Zoologischer Anzeiger 22: 369-371.

Simonetta, A.M. 1975. Remarks on the origin of the Arthropoda. Atti della Società Toscana di Scienze Naturali, Memorie, Serie B 82: 112-134.

Simonetta, A. & Delle Cave, L. 1981. An essay in the comparative and evolutionary morphology of palaeozoic arthropods. In: Origine dei Grandi Phyla dei Metazoi: Convegno Internazionale (Roma, 7-9 Maggio 1979) [Atti dei Convegni Lincei, vol. 49] Accademia Nazionale dei Lincei, Roma, Italy. 389-439.

Simões, L.C.G., Marques da Silva, I. & Schreiber, G. 1964. DNA e volume nuclear em tecidos de Peripatus acacioi (Marcus & Marcus). Ciência e Cultura [São Paulo] 16: 291-295.

Skuse, F.A.A. 1897. Additional localities for Peripatus leuchartii - Säng. Records of the Australian Museum 3: 10-11.

Sleigh, M.A. & Barlow, D.I. 1980. Metachronism and control of locomotion in animals with many propulsive structures. In: Aspects of Animal Movement [Society for Experimental Biology Seminar Series, vol. 5]. H.Y. Elder and E.R. Trueman, eds. Cambridge University Press, Cambridge, England. 49-70.

Smedley, N. 1932. The Onychophora of the Malay Peninsula. Bulletin of the Raffles Museum, Singapore 7: 34-35.

Smith, J.N. 1977. Comparative detoxication of invertebrates. In: Drug Metabolism: From Microbe to Man. D.V. Parke and R.L. Smith, eds. Taylor and Francis Ltd., London. 219-232.

Smith, S.J. & Gilfedder, L. 1993. Threatened, rare and localised plants and animals - an overview. In: Tasmanian Wilderness - World Heritage Values. S.J. Smith and M.R. Banks, eds. Royal Society of Tasmania, Hobart, Tasmania. 129-143.

Smith-Ramírez, C., Díaz, I., Pliscoff, P., Valdovinos, C., Méndez, M.A., Larraín, J. & Samaniego, H. 2007. Distribution patterns of flora and fauna in southern Chilean Coastal rain forests: Integrating Natural History and GIS. Biodiversity and Conservation 16: 2627-2648.

Snodgrass, R.E. 1938. Evolution of the Annelida, Onychophora and Arthropoda. Smithsonian Miscellaneous Collections 97: 1-159.

Snodgrass, R.E. 1958. Evolution of arthropod mechanisms. Smithson Institution Miscellaneous Collections 138: 1-77.

Snodgrass, R.E. 1960. Facts and theories concerning the insect head. Smithson Institution Miscellaneous Collections 142: 1-61.

Somadikarta, S., Kadarsan, S. & Djajasasmita, M. 1964. Primary type specimens of the Museum Zoologicum Bogoriense (I). Treubia 26: 179-205.

Spencer, B. 1895. Note on the presence of Peripatus insignis in Tasmania. Proceedings of the Royal Society of Victoria 7: 31-32.

Spencer, B. 1909. Description of a new species of Peripatoides from West Australia. Proceedings of the Royal Society of Victoria 21: 420-422.

Steel, T. 1896. Observations on Peripatus. Proceedings of the Linnean Society of New South Wales 21: 94-103.

Steel, T. 1897. Note on Peripatus. Proceedings of the Linnean Society of New South Wales 22: 124-125.

Stern, M. & Bicker, G. 2008. Mixed cholinergic/glutamatergic neuromuscular innervation of Onychophora: a combined histochemical/electrophysiological study. Cell & Tissue Research 333: 333-338.

Stoner, D. 1923. Collecting Peripatus in New Zealand. Science 58: 341-342.

Storch, V. 1993. Pentastomida. In: Microscopic Anatomy of Invertebrates. F.W. Harrison and M.E. Rice, eds. Wiley-Liss, New York. 115-142.

Storch, V. & Ruhberg, H. 1977. Zur Entstehung der Spermatophore von Opisthopatus cinctipes Purcell, 1989 (Onychophora, Peripatopsidae). Zoomorphologie 87: 263-276.

Storch, V. & Ruhberg, H. 1977. Fine structure of the sensilla of Peripatopsis moseleyi (Onychophora). Cell & Tissue Research 177: 539-553.

Storch, V. & Ruhberg, H. 1983. Onychophora. In: Reproductive Biology of Invertebrates. K.G. Adiyodi and R.G. Adiyodi, eds. John Wiley & Sons. 397-405.

Storch, V., Ruhberg, H. & Alberti, G. 1978. Zur Ultrastruktur der Segmentalorgane der Peripatopsidae (Onychophora). Zoologische Jahrbücher, Abteilung für Anatomie und Ontogenie der Tiere 100: 47-63.

Storch, V., Alberti, G. & Ruhberg, H. 1979. Light and electron microscopical investigations on the salivary glands of Opisthopatus cinctipes and Peripatopsis moseleyi (Onychophora: Peripatopsidae). Zoologischer Anzeiger 203: 35-47.

Storch, V., Holm, P. & Ruhberg, H. 1988. Zur Ultrastruktur und Histochemie des Darmkanals verschiedener Onychophora. Zoologischer Anzeiger 221: 281-294.

Storch, V., Mummert, R. & Ruhberg, H. 1995. Electron microscopic observations on the male genital tract, sperm development, spermatophore formation, and capacitation in Epiperipatus biolleyi (Bouvier) (Peripatidae, Onychophora). Mitteilungen aus dem Hamburgischen Zoologischen Museum und Institut 92: 365-379.

Storch, V., Ruhberg, H., Alberti, G. & Jamieson, B.G.M. 2000. Onychophora. In: Reproductive Biology of Invertebrates, Volume IX, Part B. Progress in Male Gamete Ultrastructure and Phylogeny. B. G. M. Jamieson, ed. John Wiley & Sons, Chichester, UK. 293-310.

Strand, E. 1919. Meine zoologischen (exclus. entomologischen) Publikationen 1897-1918, nebst Nachtrag zum Verzeichnis meiner entomologischen Publikationen. Archiv für Naturgeschichte, Abteilung A. Original-Arbeiten 83: 24-36.

Strausfeld, N.J., Buschbeck, E.K. & Gomez, R.S. 1995. The arthropod mushroom body: Its functional roles, evolutionary enigmas and mistaken identities. In: The Nervous System of Invertebrates: An Evolutionary and Comparative Approach. O. Breidbach and W. Kutsch, eds. Birkhäuser Verlag, Basel. 349-381.

Strausfeld, N.J., Hansen, L., Li, Y., Gomez, R.S. & Ito, K. 1998. Evolution, Discovery, and Interpretations of Arthropod Mushroom Bodies. Learning & Memory 5: 11-37.

Strausfeld, N.J., Strausfeld, C.M., Loesel, R., Rowell, D. & Stowe, S. 2006. Arthropod phylogeny: onychophoran brain organization suggests an archaic relationship with a chelicerate stem lineage. Proceedings of the Royal Society B: Biological Sciences 273: 1857-1866.

Strausfeld, N.J., Strausfeld, C., Stowe, S., Rowell, D. & Loesel, R. 2006. The organization and evolutionary implications of neuropils and their neurons in the brain of the onychophoran Euperipatoides rowelli. Arthropod Structure & Development 35: 169-196.

Stuhlmann, F. 1886. Die Reifung des Arthropodeneies nach Beobachtung an Insekten, Spinnen, Myriapoden und Peripatus. Berichte der Naturforschenden Gesellschaft zu Freiburg i. B. 1: 128.

Stys, P. & Zrzavý, J. 1994. Phylogeny and classification of extant Arthropoda: Review of hypotheses and nomenclature. European Journal of Entomology 91: 257-275.

Subramoniam, T. & Azariah, J. 1974. On the structure and histochemistry of the cuticle of austroperipatus Peripatoides novae-zealandiae. Acta Histochemica 50: 75-83.

Sudhaus, W. 1969. Zur Morphologie und Histologie der Onychophora mit einer Anleitung für das Grosse Zoologische Praktikum: Untersuchungen an Peripatoides novaezealandiae. Thesis (Staatsexamensarbeit) at the University of Kiel. 1-100.

Sudhaus, W. 1985. Classis: Onychophora. In: Lehrbuch der Zoologie, Band 2, Systematik, 3 ed. R. Siewing, ed. Gustav Fischer, Stuttgart, New York. 762-768.

Sundara Rajulu, G. & Manavalaramanujam, R. 1972. Free amino acids in the haemolymph of Eoperipatus weldoni (Onychophora). Experientia 28: 87-88.

Sundara Rajulu, G. & Singh, M. 1969. Physiology of the heart of Eoperipatus weldoni (Onychophora). Naturwissenschaften 56: 38.

Sundara Rajulu, G. & Santhana Krishnan, G. 1973. Studies on the nature of the cardio-excitor neurohormone in Eoperipatus weldoni (Onychophora: Arthropoda), together with observations on its phylogenetic significance. Zeitschrift für zoologische Systematik und Evolutionsforschung 11: 104-110.

Sundara Rajulu, G., Krishnan, N. & Singh, M. 1970. The haemocytes of Eoperipatus weldoni (Onychophora: Arthropoda). Zoologischer Anzeiger 184: 220-225.

Sunnucks, P. & Wilson, A.C.C. 1999. Microsatellite markers for the onychophoran Euperipatoides rowelli. Molecular Ecology 8: 899-900.

Sunnucks, P., Curach, N.C., Young, A., French, J., Cameron, R., Briscoe, D.A. & Tait, N.N. 2000. Reproductive biology of the onychophoran Euperipatoides rowelli. Journal of Zoology 250: 447-460.

Sunnucks, P. & Tait, N. 2001. What's so interesting about velvet-worm sex? Tales of the unexpected. Nature Australia Winter 2001 27: 60-69.