Powell

1980

A.bitaeniatum Near Calabar

1983

A.bitaeniatum 3 km South of Aking, Oban Hills

1986

A.bitaeniatum Rumuji, New Calabra River

1988

A.bitaeniatum 3 km S. Isiokpo, New Calabar Bas.

1992

A.bitaeniatum Akoada bridge, Sombrero River
A.bitaeniatum Powei Creek, Mum Bas.