Acosta, Arsenio (fl. 1995-2001) (co-collector)
Aguayo, A. (fl. 1988-1989) (co-collector)
Apestegui, I. (fl. 2002) (co-collector)
Aquino, P. (fl. 1992) (co-collector)
Báez, Pedro (fl. 1999) (co-collector)
Balbuena, César (fl. 1996-2007) (co-collector)
Basualdo, Isabel L. (1942-) (co-author, co-collector)
Benítez, A. (fl. 1997) (co-collector)
Benítez, C. (fl. 1987) (co-collector)
Benítez de Bertoni, Bonifacia (fl. 1994) (co-collector)
Brítez, Ramón (fl. 1999) (co-collector)
Cabrera, Ángel Lulio (1908-1999) (co-author, co-collector)
Cardozo, Wilfrido (co-collector)
Chaparro, Isabelino (fl. 1998-2003) (co-collector)
Cristóbal, Carmen Lelia (1932-) (co-collector)
Cuévas, C. (fl. 1988) (co-collector)
Degen Naumann de Arrúa, Rosa Luisa (1962-) (co-collector)
Deginani, Norma B. (1950-) (co-collector)
Duarte, Norberto (fl. 1998) (co-collector)
Espinoza, Luciano (fl. 2000) (co-collector)
Farney, C. (fl. 1985) (co-collector)
Fernandes, Afrânio (1927-) (co-author)
Fernandez, Javier (fl. 1996) (co-collector)
Florentín, Alberto (fl. 1994) (co-collector)
Franco, R. (fl. 1992) (co-collector)
Galeano, José (fl. 2003) (co-collector)
Gamarra, Roque (fl. 1999-2002) (co-collector)
Garcete, Francisco (fl. 1995) (co-collector)
Garcete, G. (fl. 1991) (co-collector)
Gentry, Alwyn Howard (Al) (1945-1993) (co-collector)
Giaioti, A. (fl. 1974) (co-collector)
Gómez Cabrera, Robert (fl. 2002) (co-collector)
Guerrero, Leongino (fl. 1992-2003) (co-collector)
Hellman, Gustavo (fl. 1998) (co-collector)
Hurrell, J. (fl. 1983) (co-collector)
Iudica, Carlos Alberto (fl. 1977-2007) (co-collector)
Jara, Victor (fl. 1993) (co-collector)
Kiesling, Roberto (1941-) (co-collector)
Landrum, Leslie Roger (Les) (1946-) (co-collector)
Landrum, Sonia S. (fl. 1986-2001) (co-collector)
León, Henry A. (fl. 1976-1983) (co-collector)
Loucks, J. (fl. 1995) (co-collector)
Ortiz, Mirtha L. (1955-) (co-author, co-collector)
Park Guard (fl. 1989) (co-collector)
Pietrobom da Silva, Márcio Roberto (fl. 1991-2008) (co-collector)
Pochettino, M.L. (fl. 1981) (co-collector)
Ramadori, Daniel Edgardo (fl. 1985-2008) (co-collector)
Ramírez Benítez, Silverio (fl. 1999) (co-collector)
Raven, Peter Hamilton (1936-) (co-author)
Salinas, A. (fl. 1990) (co-collector)
Tillería, Tulio (fl. 1991) (co-collector)
Ulibarri, Emilio Agustin (1946-) (co-collector)
Vargas, Aníbal (fl. 1995) (co-collector)
Velásquez, M. (fl. 1989) (co-collector)
Velásquez, Ramón (fl. 1989) (co-collector)
Velázquez, C. (fl. 1989-1990) (co-collector)
Velázquez, E. (fl. 1990) (co-collector)
Velázquez, H. (fl. 1991) (co-collector)
Velázquez, M. (fl. 1989-1990) (co-collector)
Velázquez, R. (fl. 1990) (co-collector)
Velázquez, S. (fl. 1989) (co-collector)
Velázquez, U. (fl. 1989-1991) (co-collector)
Vera, Manuel (fl. 1994-2001) (co-collector)
Vieira da Silva, Francisco (fl. 1994-1996) (co-collector)
Volponi, Carola Regina (fl. 1971-1992) (co-collector)
Zavala, Shirley (fl. 1996-1997) (co-collector)
Zuloaga, Fernando Omar (1951-) (co-collector)