Nicholson HA, Etheridge R. (1879). On the microscopic stucture of three species of the genus Cladochonus M'Coy. The Geological Magazine, New Series, Decade 2. 6: 289-296, pl. 7.
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Nicholson HA, Etheridge R
1879
On the microscopic stucture of three species of the genus Cladochonus M'Coy