Nditafon Adeline Mbangshie
Department of Biology, Higher Teacher Training College, University of Bamenda, Cameroon, P.O. Box 39 Bambili

Pharaon Auguste Mbianda
Department of Animal Biology and Physiology, University of Douala, Cameroon, P.O. Box 2701 Douala / Cameroun

Heumou Cyril Romeo
Department of Biology, Higher Teacher Training College, University of Bamenda, Cameroon, P.O. Box 39 Bambili

Fotso .
Department of Biology, Higher Teacher Training College, University of Bamenda, Cameroon, P.O. Box 39 Bambili

Pando Joseph Blaise
Department of Science of Life and Earth, Higher Teacher Training College, University of Maroua, Cameroon, P.O. Box 55 Maroua

Otiobo Atibita Esther Nadine
Department of Animal Biology and Physiology, University of Douala, Cameroon, P.O. Box 2701 Douala / Cameroun