| Director |
1990-present |
C.E.D.B, University of West Florida |
| Dean |
1995-1999 |
College of Science and Technology, University of West Florida |
| University Research Professor |
1986-present |
University of West Florida |
| Professor of Biology |
1978-present |
University of West Florida |
| Associate Professor of Biology |
1975-1978 |
University of West Florida |
| Assistant Professor of Biology |
1972-1975 |
University of West Florida |
| Post-Doctoral Research Associate |
1966-1972 |
Dept. Biology, Tulane University, New Orleans |
| Government of India Research Training Fellow |
1962-1965 |
Andhra University, Visakhapatnam, India |
| Instructor in Zoology |
1961-1962 |
Andhra University, Visakhapatnam, India |
| Instructor in Biology |
1958-1959 |
A.C. College, Guntur, India |
