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Rajashekhar, K.P. & Bali, G. (1981): Sexual dimorphism in a whip-scorpion, Thelyphonus indicus Stoliczka (Arachnida, Uropygi). Bull. Br. arachnol. Soc. 5 (7): 330-331
Ramírez, M.J. & González, A. (1999): New or little-known species of the genus Echinotheridion Levi (Araneae, Theridiidae). Bull. Br. arachnol. Soc. 11 (5): 195-198
Raven, R.J. (1980): The Australian mygalomorph spider genus Ixamatus Simon (Dipluridae: Diplurinae) and its affinities. Bull. Br. arachnol. Soc. 5 (1): 43-49
Raven, R.J. (1981): The mygalomorph spider genera Phyxioschaema Simon and Stenygrocercus Simon (Dipluridae: Ischnothelinae). Bull. Br. arachnol. Soc. 5 (5): 225-231
Raven, R.J. & Churchill, T.B. (1989): A new species of Migas (Araneae, Migidae), with notes on Heteromigas in Tasmania. Bull. Br. arachnol. Soc. 8 (1): 5-8
Raven, R.J. & Schwendinger, P.J. (1989): On a new Phyxioschema (Araneae, Mygalomorphae, Dipluridae) from Thailand and its biology. Bull. Br. arachnol. Soc. 8 (2): 55-60
Reddell, J.R. & Cokendolpher, J.C. (1984): A new species of troglobitic Schizomus (Arachnida: Schizomida) from Ecuador. Bull. Br. arachnol. Soc. 6 (4): 172-177
Reed, C.F. & Witt, P.N. (1972): Growth rate and longevity in two species of orb-weaving spiders (Araneae:Argiopidae). Bull. Br. arachnol. Soc. 2 (6): 111
Reichling, S.B. (1997): A diminutive new species of Acanthopelma from Belize (Araneae: Theraphosidae). Bull. Br. arachnol. Soc. 10 (9): 337-340
Reisinger, W.M., Focke, P. & Linzen, B. (1990): Lung morphology of the tarantula, Eurypelma californicum Ausserer, 1871 (Araneae: Theraphosidae). Bull. Br. arachnol. Soc. 8 (6): 165-170
Reiskind, J. (1976): Orsima formica: a Bornean salticid mimicking an insect in reverse. Bull. Br. arachnol. Soc. 3 (8): 235-236
Richman, D.B. & Jackson, R.R. (1992): A review of the ethology of jumping spiders (Araneae, Salticidae). Bull. Br. arachnol. Soc. 9 (2): 33-37
Rinaldi, Isabela M.P. & Stropa, A.A. (1998): Sexual behaviour in Loxosceles gaucho Gertsch (Araneae, Sicariidae). Bull. Br. arachnol. Soc. 11 (2): 57-61
Ritchie, J.M. (1978): The discovery of Oecobius annulipes Lucas in Britain. Bull. Br. arachnol. Soc. 4 (5): 210-212
Roberts, M.J. (1969): Observations on an environmental association between Entelecara erythropus (Westr.) (Linyphiidae) and Ciniflo similis Blk. (Dictynidae). Bull. Br. arachnol. Soc. 1 (4): 63
Roberts, M.J. (1974): Notes on the identification of the British species of Bolyphantes (Linyphiidae). Bull. Br. arachnol. Soc. 3 (2): 29-33
Roberts, M.J. (1975): A note on the female of Diplocephalus protuberans (O.P.-C.). Bull. Br. arachnol. Soc. 3 (5): 144
Roberts, M.J. (1976): Centromerus parkeri Cooke; an intersex of Centromerus prudens (O.P.-Cambridge). Bull. Br. arachnol. Soc. 3 (7): 191-193
Roberts, M.J. & Parker, J.R. (1973): Gynandry and intersexuality in spiders. Bull. Br. arachnol. Soc. 2 (9): 177-183
Robertson, M.W., Adler, P.H. & McCreadie, J.W. (1994): Colour change in the green lynx spider, Peucetia viridans (Araneae: Oxyopidae). Bull. Br. arachnol. Soc. 9 (9): 290-292
Robinson, M.H. & Robinson, B. (1975): Techniques in field studies of spiders. Bull. Br. arachnol. Soc. 3 (6): 160-165
Robinson, M.H. & Robinson, B.C. (1972): Techniques for the observation of spider behaviour. Bull. Br. arachnol. Soc. 2 (4): 58-59
Robinson, M.H. & Robinson, B.C. (1972): The evolution of courtship behaviour in spiders. Bull. Br. arachnol. Soc. 2 (6): 116
Roscoe, D.T. & Walker, G. (1991): The adhesion of spiders to smooth surfaces. Bull. Br. arachnol. Soc. 8 (7): 224-226
Rössl, R. & Henschel, J.R. (1999): Ecology and diet of Psammodon deserticola (Simon) (Araneae: Zodariidae). Bull. Br. arachnol. Soc. 11 (4): 155-157
Roth, V.D. & Roth, B.M. (1984): A review of appendotomy in spiders and other arachnids. Bull. Br. arachnol. Soc. 6 (4): 137-146
Roush, R.S. & Rababaugh, D.C. (1993): Web density is related to prey abundance in cellar spiders, Pholcus phalangioides (Fuesslin) (Araneae: Pholcidae). Bull. Br. arachnol. Soc. 9 (5): 142-144
Rushton, S.P. (1991): A discriminant analysis and logistic regression approach to the analysis of Walckenaeria habitat characteristics in grassland (Araneae: Linyphiidae). Bull. Br. arachnol. Soc. 8 (7): 201-208
Rushton, S.P., Topping, C.J. & Eyre, M.D. (1987): The habitat preferences of grassland spiders as identified using Detrended Correspondence Analysis (DECORANA). Bull. Br. arachnol. Soc. 7 (6): 165-170
Russell-Smith, A. (1981): Seasonal activity and diversity of ground-living spiders in two African savanna habitats. Bull. Br. arachnol. Soc. 5 (4): 145-154
Russell-Smith, A. (1992): Meioneta exigua, replacement name for Meioneta parva Locket & Russell-Smith, 1980 (Araneae: Linyphiidae). Bull. Br. arachnol. Soc. 9 (1): 32
Russell-Smith, A. & Swann, P. (1972): The activity of spiders in coppiced chestnut woodland in southern England. Bull. Br. arachnol. Soc. 2 (6): 99-103
Russell-Smith, A., Ritchie, J.M. & Collins, N.M. (1987): The surface-active spider fauna of arid bushland in Kora Reserve, Kenya. Bull. Br. arachnol. Soc. 7 (6): 171-174
Ruzicka, V. (2001): The female of Anyphaena furva Miller (Araneae: Anyphaenidae). Bull. Br. arachnol. Soc. 12 (1): 46-48