Stockley, G. M. 1927. Neogene Echinoidea from Zanzibar Protectorate. Pp. 103-117 in Report on the palaeontology of the Zanzibar Protectorate His Majesty´s Stationery Office, London.
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Stockley, G. M.
1927
Neogene Echinoidea from Zanzibar Protectorate
Report on the palaeontology of the Zanzibar Protectorate His Majesty´s Stationery Office