- W. R. Philipson 671
- Philipson WR 285
- Philipson, W.R. 243
- W. R. Philipson, J. M. Idrobo & A. Fernandez 226
- W. R. Philipson & J. M. Idrobo 224
- Philipson WR; Philipson MN 173
- W.R. Philipson 148
- Philipson, W.R.; Philipson, M.N. 131
- W. R. Philipson, J. M. Idrobo & R. Jaramillo 110
- W. R. Philipson & M. Philipson 109
- W. R. Philipson & M. N. Philipson 95
- William Raymond Philipson 90
- Philipson WR; Kairo A 84
- W R. Philipson 84
- W. R. Philipson, J. M. Idrobo & R. Jaramillo M. 78
- Philipson WR; Captain James Cook Bicentenary Expedition 70
- W.R. Philipson|Jesús M. Idrobo 48
- Philipson WR; Expedition of University of Canterbury - Christchurch 47
- W. R. Philipson, J. M. Idrobo & Á. Fernández 42
- Philipson WR; Karenga K 42
- W.R. Philipson & J.M. Idrobo 33
- W.R. Philipson, J.M. Idrobo, R. Jaramillo 29
- Philipson WR; Katik P 28
- W.R. Philipson|et al. 27
- Philipson, William Raymond & Philipson, Melva Noeline 26
- W.R. Philipson, et al 25
- William Philipson 20
- Philipson, WR;Idrobo-Muñoz, JM 20
- W. R. Philipson et al. 19
- W.R. Philipson|Jesús M. Idrobo|Roberto Jaramillo M. 17
- W. R. Philipson; J. M. Idrobo, R. Jaramillo 12
- W. R. Philipson, J. M. Idrobo & A. Fernández 11
- Philipson WR; Idrobo JM; Jaramillo Mejía R 11
- Philipson WR; Idrobo JM; Fernández A 10
- William Raymond Philipson, Jesús Medardo Idrobo Muñoz 9
- Philipson WR; Idrobo JM 9
- W. R. Philipson, J. M. Idrobo 9
- W. R. Philipson | Jesús Medardo Idrobo 9
- W. Philipson, J. Idrobo, A. Fernandez 8
- Philipson, William Raymond 7
- Philipson, WR 6
- W. R. Philipson; J. M. Idrobo, A. Fernandez 6
- W.R. Philipson|Jesús M. Idrobo|Álvaro Fernández-Pérez 6
- W.R. Philipson|Jesús M. Idrobo|A. Fernández 6
- William Raymond Philipson, Jesús Medardo Idrobo Muñoz, Aveliano Fernández 6
- W. R. Philipson & A. Kairo 6
- William Raymond Philipson, Jesús Medardo Idrobo Muñoz, Antonio Fernández 6
- Philipson, W.R. et al. 6
- Philipson, W. R. 5
- Professor John Lovis | Mrs Joan Lovis | William Philipson 5