Usage of data from the WoRMS Hemichordata in scientific publications should be acknowledged by citing as follows:
Tassia, M. G.; Cannon, J. T.; Konikoff, C. E.; Shenkar, N.; Halanych, K. M.; Swalla, B. J. (2016). The Global Diversity of Hemichordata. PLOS ONE. 11(10): e0162564.
If the data from the WoRMS Hemichordata constitute a substantial proportion of the records used in analyses, the chief editor(s) of the database should be contacted. There may be additional data which may prove valuable to such analyses.