A synonymic catalogue of Orthoptera - British Museum (Natural History). Department of Zoology. (Printed by order of the Trustees [by Taylor and Francis], 1906)

A synonymic checklist of the Hexapoda of the New Zealand sub-region : the smaller orders - Auckland Institute; Museum. (Auckland Institute and Museum, 1977)

Synopsis hepaticarum : coniunctis studiis scripserunt et edi curaverunt - Gottsche, Karl Moritz, 1808 -1892 (Meissnerianis, 1844)

A synopsis of the classification of the British Palæozoic rocks / by the Rev. Adam Sedgwick ; With a systematic description of the British Palæozoic fossils in the Geological museum of the University of Cambridge, by Frederick McCoy - Salter, John William, 1820 -1869 (J.W. Parker and Son; [etc.], 1851)

A synopsis of the families and genera of Nematoda - Baylis, H. A. (Harry Arnold), 1889 -1972 (1926)

Synopsis plantarum; seu, Enumeratio systematica plantarum plerumque adhuc cognitarum cum differentiis specificis et synonymis selectis ad modum Persoonii elaborata - Dietrich, David Nathanael Friedrich, 1800 -1888 (B. F. Voigtii, 1839)

Synopsis plantarum :seu, Enumeratio systematica plantarum plerumque adhuc cognitarum cum differentiis specificis et synonymis selectis ad modum Persoonii elaborata - Dietrich, David Nathanael Friedrich, 1800 -1888 (B. F. Voigtii, 1852)

A systematic catalogue of British insects : being an attempt to arrange all the hitherto discovered indigenous insects in accordance with their natural affinities. Containing also the references to every English writer on entomology, and to the principal foreign authors. With all the published British genera to the present time - Stephens, James Francis, 1792 -1853 (Baldwin and Cradock, 1829)

A systematic catalogue of British insects : being an attempt to arrange all the hitherto discovered indigenous insects in accordance with their natural affinities - Stephens, James Francis, 1792 -1853 (Baldwin and Cradock, 1829)

Systematic list of the trees, shrubs and woody-climbers of the Bombay Presidency - Talbot, W. A. (William Alexander), 1847 -1917 (Printed at the Govt. Central Press, 1894)

The systematic position of the Orthoptera in relation to other orders of insects - Packard, A. S. (Alpheus Spring), 1839 -1905 (Govt. Print. Off.], 1883)

Systematisches Verzeichniss der im indischen archipel in den Jahren 1842-1848 gesammelten sowie der aus Japan empfangenen Pflanzen - Zollinger, Heinrich, 1818 -1859 (E. Kiesling, 1854)

Systematisches Verzeichniss der im indischen Archipel in den Jahren 1842-1848 gesammelten sowie der aus Japan empfangenen Pflanzen - Zollinger, Heinrich, 1818 -1859 (E. Kiesling, 1854)

Systematisches Verzeichniss der im indischen archipel in den Jahren 1842-1848 gesammelten sowie der aus Japan empfangenen Pflanzen - Zollinger, Heinrich, 1818 -1859 (E. Kiesling, 1855)

Systême silurien du centre de la Bohême - Barrande, Joachim, 1799 -1883 (Chez l'auteur et éditeur, 1852)