1. South African Pycnogonida.;BARNARD;Annals of the South African Museum,1954
2. Pycnogonides de Pourquoi Pas?;BOUVIER;Deuxième Expédition Antarctique Française (1909-1910),1913
3. The genus Rhynchothorax Costa (Pycnogonida) in New Zealand waters.;CLARK;Journal of the Royal Society of New Zealand (Biological Sciences),1976
4. The effect of missing data and of two sources of character values on a phenetic study of the willows of California.;CROVELLO;Madroño,1968