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Neonaphorura duboscqui Denis, 1932
Tullbergia duboscqui Denis, 1932
Neonaphorura duboscqui Bagnall, 1935
Neonaphorura anglicanus Bagnall, 1936
Neonaphorura duboscqui Bagnall, 1936
Figs.58-64 .

There are seven slides of this species in the Bagnall collection, six being labelled N. duboscqui and one N. devoniensis. This latter name was never published by Bagnall but in 1936 he did publish the name N. anglicanus for the British specimens he previously had identified as N. duboscqui in 1935. Bagnall's two specimens from Sewerby, E. Yorks, were the ones upon which he based the species N. anglicanus, and five specimens from Petit Tor Bay, S. Devon, were identified as N. duboscqui of Denis. I have examined all these specimens and find them identical in all respects. The specimens from Sewerby are smaller, probably not mature, and cannot be regarded on these grounds as a new species. The postantennal organ of these specimens agrees in every detail with the Fig. 2 given by Denis for this structure in his original description. Denis mentions the small central sense clubs in the SO Ant III as undoubtedly present but difficult to see clearly. I have been able to decipher these structures after remounting the specimens and Fig. 58 shows clearly the relationships of the various parts of this sensory organ.