Constantin R., 2007: Description of a new species of Maronius, 1881 from Ecuador (Coleoptera, Cantharidae). 6 pp. [M32] Entomologica Basiliensia et collectionis Frey 29: 47-52.

 Constantin R., 2008: A contribution to the genus Pectonotum Gorham, 1891, in Ecuador (Coleoptera, Cantharidae). 26 pp. (in English). [M48] Entomologica Basiliensia et collectionis Frey 30: 49-74.

 Contreras-Lichtenberg R., 1982: Ein Beitrag zur Kenntnis von Goeldichironomus (Chironomus) carus (Townes) 1945 (Diptera, Chironomidae). 6 pp. Spixiana 5(2): 175-180.

 Cook M. T., 1907: The insect galls of Indiana. 10 pp. (in English). Proceedings of the Academy of Science: 1-10.

 Cook O. F., 1896: An arrangement of the Geophilidae, a family of Chilopoda. 12 pp. 

 Cook O. F., 1896: Priodesmus, a new genus of Diplopoda from Surinami. 10 pp. 

 Cook O. F., 1896: Two new diplopod Myriapoda of the genus Oxydesmus from the Congo. 6 pp. 

 Cook O. F., 1899: American Oniscoid Diplopoda of the order Merocheta. 21 pp. 

 Cook O. F., 1911: New tropical Millipeds of the order Merocheta, with an example of kinetic evolution. 23 pp. 

 Cook O. F., 1911: Notes on the distribution of millipeds in South-Ern Texas, with descriptions of new genera and species from Texas, Arizona, Mexico, and Costa Rica. 20 pp. 

 Cook O. F., 1911: The hothouse milliped as a new genus. 7 pp. 

 Cook O. F., Loomis H. F., 1928: Millipeds of the order Colobognatha, with descriptions of six new genera and type species, from Arizona and California. 27 pp. [M69] 

 Cook S. F., 1926: The effects of certain heavy metals on respiration. 27 pp. (in English). The Journal of General Physiology 9(4): 575-601.

 Cooke J. A. L., 1962: Spiders from tidal marshes near flatford Will. Suffolk. 2 pp. 

 Cooke J. A. L., 1962: The spiders of colne point, essex, with descriptions of two species new to Britain. 11 pp. 

 Cooke J. A. L., Duffey E., Merrett P., 1968: The male of Lasiargus gowerensis (Araneae: Linyphiidae) a recently discovered British spider. 8 pp. 

 Cooper G. A., Arellano A. R. V., Johnson J. H., Okulitch V. J., Stoyanow A., Lochman C., 1952: Cambrian stratigraphy and paleontology near Caborca, northwestern Sonora, Mexico. With 31 plates, 184 pp. 

 Cooreman J., 1943: Note sur la faune des Hautes-fagnes en Belgique. XI. Acariens (Parasitiformes). 28 pp. 

 Cooreman J., 1943: Note sur la faune des Hautes-fagnes en Belgique. XII. Acariens (Tronbidiformes). 16 pp. 

 Cooreman J., 1944: Notes et observations sur les Acariens, III. 16 pp. 

 Cooreman J., 1946: Acariens de l’Ile de Chypre. (Voyage de M. A. Ball, octobre-novembre 1932). 14 pp. 

 Cooreman J., 1947: Assiciation d’Acariens vivant dans les nids de Larus ridibundus ridibundus Linné, a Kalmthout. 14 pp. 

 Cooreman J., 1948: Les stades de développement de Vidia concellaria n. sp. (Acarien, Ensliniellinae). 11 pp. 

 Cooreman J., 1949: Notes sur Johnstoniana errans (Johnston), (Acarien, Trombidiidae). 16 pp. 

 Cooreman J., 1951: Notes et observations sur les Aracriens. (IV). 12 pp. 

 Cooreman J., 1955: Note sur des Acariens récoltés en Grece et en Turquie par K. Lindberg. 12 pp. 

 Cooreman J., 1959: Notes sur le genre Aeroglyphus Zachvatkina, 1941 (Acaridiae, Glycyphagidae). 19 pp. 

 Cooreman J., 1963: Notes et observations sur quelques Acariens infeodes aux coleopteres Scolytides de la faune Belge. 48 pp. 

 Cooreman J., 1973: Siphonaptera recueillis en Libye par la mission X. Misonne (1972-1973). 11 pp. 

 Cooreman, 1954: Notes sur quelques Acariens de la fauna Cavernicole. 19 pp. 

 Coppel H. C., Mertins J. W., 1980: Biological insect pest suppression. 427 pp. (in Russian). 

 Cornello M., Manzoni A., 2004: Studio della successione del macrobenthos su substrati sperimentali nel bacino centrale della Laguna di Venezia. 10 pp. (in Italian). Bolletino del Museo civico di Storia naturale Venezia 55: 61-70.

 Corporaal J. B., 1926: Some new species of oriental Cleridae and remarks on known species. 18 pp. [M06] 

 Corporaal J. B., 1937: Check list of the Cleridae (Coleoptera) of Oceania. 16 pp. 

 Corput J. G., 1940: De Wiskunde. 16 pp. (in Dutch). Wegen der Wetenschap: 29-44.

 Correa D. D., 1963: Nemerteans from Curaçao. 16 pp. Studies on the Fauna of Curaçao and Other Caribbean Islands 17: 41-56.

 Correa D. D., 1963: The turbellarian Hofstenia miamia in the Caribbean Sea. 3 pp. Studies on the Fauna of Curaçao and Other Caribbean Islands 17: 38-40.

 Costa D. P. da, 2003: Floristic composition and diversity of Amazonian Rainforest bryophytes in the state of Acre, Brazil. 16 pp. Acta Amazonica 33(3): 399-414.

 Costa Lima A. da, 1929: Sobre alguns anophelineos encontrados no Brasil. (2a. Nota). 37 pp. 

 Costa Lima A. da, 1938: Uma nova pulga do Mexico e nota sobre Hormopsala (Siphonaptera: Ischnopsyllidae). 7 pp. 

 Costa Lima A. da, 1940: Nota sobre as especies de „Tunga“ (Siphonaptera: Tungidae). 3 pp. 

 Costa Lima A. da, 1940: Sobre uma pulga do porco-espinho da India (Siphonpatera: Pulicidae). 7 pp. 

 Costa M. J., Almeida P. R., Costa J. L., Assis C. A., Moreira F., 1993: Algumas notas sobre a capacidade adaptativa da enguia europeia, Anguilla anguilla (L., 1758), e das taihnas (Fam. Mugilidae): referencia especial as populacoes do tejo. 17 pp. 

 Costa M., 1966: The biology and development of Hypoaspis (Pneumolaelaps) hyatti (Acari: Mesostigmata). 10 pp. 

 Cottarelli V., 1970: Parastenocaris tyrrhenidis n. sp., nuovo arpacticide interstizaile di Sardegna (Crustacea, Copepoda). 11 pp. 

 Cottarelli V., 1975: Una nuova Arenopontia di acque interstiziali litorali della Sardegna (Crustacea, Copepoda, Harpacticoida). 8 pp. Fragmenta entomologica 11(1): 65-72.

 Cottarelli V., 1975: Una nuova Nitocrella di acque sotterranee italiane: Nitocrella juturna n. sp. (Crustacea, Copepoda, Harpacticoida). 9 pp. Fragmenta entomologica 11(3): 213-221.

 Cottarelli V., 1983: Osservazioni sul genere Laophontina e descrizione di Laophontina paradubia n. sp. (Crustacea, Copepoda, Harpacticoida). 10 pp. Fragmenta entomologica 17(1): 1-10.

 Cottarelli V., Bruno M. C., : Richerche zoologiche della nave oceanografica “Minerva” (C.N.R.) sulle isole circumsarde. XXI. Parastenocaris rivi n. sp. di acque iporreiche dell’Isola di S. Pietro (Sardegna) (Crustacea, Copepoda, Harpacticoida). 11 pp. 

 Cottarelli V., Bruno M. C., Venanzetti F., : Richerche zoologiche della nave oceanografica “Minerva” (C.N.R.) sulle isole circumsarde. XVIII. First record in phreatic freshwater of harpacticoids belonging to the genus Arenopontia (Crustacea, Copepoda) and description of two new species. 14 pp.