Říha P., 1952: Brychius obenbergeri sp. n. ex Čechoslovenia (Col.). 4 pp. Acta entomologica Musei nationalis Pragae 28: 105-108.
 
AEP 28251
Říha P., 1952: Příspěvek k poznání morfologie larvy Orectochilus villosus Müll. (Col. Gyrinidae). 7 pp. [M33] Acta entomologica Musei nationalis Pragae 28: 251-257.
 
14675
Říha P., 1955: Studies on the metathoracic furca of the Dytiscidae (Coleoptera). 58 pp. [M08]
 
AEP 30341
Říha P., 1956: Studies on the metathoracic furca of the Dytiscidae (Coleoptera). 58 pp. [14675] Acta entomologica Musei nationalis Pragae 30(1955)/464: 341-398.
 
AEP 30055
Říha P., 1956: Výsledky československé expedice na Island roku 1948. (Col., Haliplidae et Dytiscidae). 6 pp. [M33] Acta entomologica Musei nationalis Pragae 30(1955): 55-60.
 
AEP 32465
Říha P., 1958: Beitrag zur Kenntnis der Colydiiden von Adsharistan nebst eiener Monographie der Gattung Dechomus Jacq. du Val (Coleoptera, Colydiidae). 5 pp. [M35] [TEN 721]
 
AEP 33413
Říha P., 1959: Die Tribus Matini (Coleoptera: Dytiscidae). 6 pp. [M63] Acta Entomologica Musei Nationalis Pragae 33: 413-418.
 
14677
Říha P., 1961: Die Gattung Lancetes (Col., Dytiscidae). 34 pp. [M08]
 
AEP 34051
Říha P., 1961: Eine neue Schwimmkäferart aus den Tertiärgebilden Böhmens (Col., Dytiscidae). 4 pp. [M33] Acta entomologica Musei nationalis Pragae 34: 51-54.
 
EBA 13357
Říha P., 1989: On the validity of the generic name Ryzophagus Herbst, 1793 (Coleoptera, Ryzophagidae). 3 pp. [M32] Entomologica Basiliensia 13: 357-359.
 
AEB 64259
Říha P., Kukalová J., 1967: Eine neue tertiäre Wasserwanze aus dem Bechlejovicer Diatomit (Heteroptera, Belostomatidae). 3 pp. Acta entomologica Bohemoslovaca 64: 259-260.
 
AVE 197
Riley J. H., 1905: A new subspecies of ground dove from Mona Island, Porto Rico. 2 pp.
 
80892
Riley J. H., 1919: Annotated catalogue of a collection of birds made by Mr. Copley Amory, Jr., in northeastern Siberia. 20 pp.
 
80896
Riley J. H., 1930: Birds from the small islands off the Northeast Coast of Dutch Borneo. 24 pp.
 
51931
Rimskij- Korsakov M. N., 1933: Methoden zur Untersuchung von Wasserhymenopteren. 32 pp.
 
DIP 4277
Ringdahl O., 1930: Fünf neue Fliegenformen aus Island. 1 pp.
 
61913
Ringdahl O., 1944: Contributions to the knowledge of the Tachinids and Muscids of Norway. 25 pp. [M58]
 
95549
Riolacci D., 1868: La théorie de Darwin. Conférence faite a l’hotel de ville de Metz le 25 janvier 1868. 21 pp. (in French).
 
8468
Rippel-Baldes A., 1947: Grundriss der Mikrobiologie. Mit 143 Abbildungen. 378 pp. Hard cover.
 
72524
Ritchie J. M., 1987: Taxonomy of the African acridoid fauna: progress and prospects 1970-1985. 15 pp. [M28]
 
ORT 1352
Ritchie J. M., 1987: The male of Esfandiaria obesa Popov (Orthoptera, Acrididae, Teratodinae) and the validity of the genus Esfandiaria Popov. 4 pp. [M63]
 
ORT 1345
Ritchie J. M., 1988: New and little-known Acridoidea (Insecta Orthoptera) from Somalia. The genus Mecostibus Karsch 1896. 6 pp. [B18] [M60]
 
SCA 954
Ritsema C., 1896: New species of the Melolonthid genus Apogonia. 8 pp.
 
HYM 3252
Ritter G., 1866: Weiter Mittheilung über die Rapswespe. 6 pp.
 
ARA 791
Rivard I., 1958: Influence on humidity on mortality and rate of development of immature stages of the grain-infesting mite Tyrophagus castellanii (Hirst) (Acarina: Acaridae) reared on mould cultures. 4 pp.
 
ARA 792
Rivard I., 1960: A technique for individual rearing of the predacious mite Melichares dentriticus (Berlese) (Acarina, Aceosejidae) with notes on its life history and behaviour. 7 pp.
 
MSI 80159
Rivosecchi L., Luca M. di, 2001: Note su alcuni ditteri conservati in musei zoologici di Roma. 23 pp. Memorie della Societá Entomologica Italiana 80: 159-181.
 
ARA 1430
Rizzieri D. A., Dennehy T. J., Glover T. J., 1988: Genetic analysis of dicofol resistance in two populations of twospotted spider mite (Acari: Tetranychidae) from New York apple orchards. 6 pp.
 
SPX 09283
Roback S. S., 1986: Reomyia a new genus of Tanypodinae-Pentaneurini (Diptera, Chironomidae). 2 pp. Spixiana 9(3): 283-284.
 
ARA 1711
Robbins R. G., 1989: Ticks of the subgenus Ixodipsis: First report of Ixodes woodi from man and remarks on Ixodes holdenriedi, a new junior synonym of Ixodes ochotonae (Acari: Ixodidae). 2 pp. Proc. Entomol. Soc. Wash. 91(2): 291-292.
 
EZS 111150
Robert B., Neu P. J., Gorka M., 2001: Lasiocephala bifidum Décamps, 1972, ein synonym fon Lasiocephala basalis (Kolenati, 1848) (Trichoptera: Lepidostomatidae). 3 pp. [TRI 159] Entomologische Zeitschrift 111(5): 150-152.
 
NBE 47018
Robert B., Schmidt C., 1998: Eine Beitrag zur Kenntnis der Köcherfliegen-Fauna der Obermainaue. 12 pp. [TRI 160] Nachrichtenblatt der Bayerischen Entomologen 47(1/2): 18-29.
 
ASN 123
Robert S., Bergeron J. M., 1977: Les Siphonapteres de la région de Sherbrooke, Québec. 12 pp.
 
TSL 11008
Roberts A. W. R., 1958: On the taxonomy of Erotylidae (Coleoptera), with special reference to the morphological characters of the larvae. II. 41 pp. [M36] The Transactions of the Royal Entomological Society of London 110(8): 245-285.
 
BOT 308
Robich G., 2006: Mycena flavofuliginosa e Mycena secessa, due nouve specie della sez. Filipedes (Fr.) Quél. (Basidiomycetes, Agaricales, Tricholomataceae). 9 pp. (in French). Bolletino del Museo civico di Storia naturale di Venezia 57: 73-81.
 
TEN 1179
Robiche G., 2001: Recherches nocturnes d’especes appartenant a la famille Tenebrionidae: découverte d’une nouvelle station en France pour Gonocephalum yelamosi Espaňol Viňolas, 1983 et examen d’un cas tératologique d’Enoplopus dentipes (Rossi, 1790) dans ledépartement du Var. (Coleoptera, Tenebrionidae). 4 pp. [M63]
 
TEN 1274
Robiche G., 2008: Nouveaux Strongylium Kirby de la région Afrotropicale (Coleoptera, Tenebrionidae). 7 pp. Entomologia Africana 13(1): 58-64.
 
LAM 108145
Robiche G., Hervieu F., 2008: Description d´une nouvelle espece d´Ethiopie appartenant au genre Euglyptonotus gestro, 1901. (Coleoptera, Tenebrionidae). 3 pp. [M54] Lambillionea 108(4): 145-148.
 
ARA 1905
Robillard J., 1971: A new species of Digamasellus (Acarina: Digamasellidae) from Louisiana. 12 pp.
 
8709
Robiller F., 1987: Tiere der Nacht. 240 pp.
 
MUZ 40
Robinson G. S., Jones D. W., 1996: A cheap, low-powered insect light-trap for tropical use. 12 pp.
 
80898
Robinson W., 1895: An annotated list of birds observed on the Island of Margarita, and at Guanta and Laguayra, Venezuela. 38 pp.
 
AVE 198
Robinson W., Richmond C. W., 1902: An annotated list of birds collected in the vicinity of La Guaira, Venezuela. 16 pp.
 
ZME 78461
Robson E. A., 2004: Cnidogenesis in the jewel anemone Corynactis californica (Carlgreen, 1936) and C. viridis (Allman, 1846) (Anthozoa: Corallimorpharia). 16 pp. Zoologische Mededelingen Leiden 78: 461-476.
 
88176
Robyns W., 1935: Delectus seminum quae Hortus Botanicus Bruxellensis pro mutua commutatione offert Anno 1935.16 pp. (in Latin). Bulletin du Jardin Botanique de l’Etat 13: 1-16.
 
88177
Robyns W., 1937: Delectus seminum quae Hortus Botanicus Bruxellensis pro mutua commutatione offert Anno 1937.16 pp. (in Latin). Bulletin du Jardin Botanique de l’Etat 14: 1-16.
 
80593
Roch F., 1935: Die Terediniden des Schwarzen Meeres. 18 pp.
 
PSC 84
Rocha L. A., Rosa I. L., Rosa R. S., 1998: Peixes recifais da costa da Paraíba, Brasil. 14 pp. Revta bras. Zool. 15(2): 553-566.
 
EVE 617
Rocha R. M., Nasser C. M., 1998: Some aseidians (Tunicata, Ascidiacea) from Paraná State, Southern Brazil. 10 pp. Revta bras. Zool. 15(3): 633-642.
 
95551
Rochoux J.-A., : A l’Académie royale de médecine. 39 pp. (in French). Bulletin de l’Académie royale de médecine 8: 1-39.