14 species cited in:
Maynard, C. J. 1920b [April 8]. Contributions to the history of the Cerionidae with descriptions of many new species and notes on evolution in birds and plants. Records of Walks and Talks with Nature, Appendix to Volume 10. Number 5:81-92, text figs. 55-60 [including 59*], pls. 12, 13.
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