摘要:After publication several small errors in the labelled positions of the features described in this paper were found. Correcting these errors results in changes to Table 1 and Figs. 4, 5, and 6. These changes are: the latitude and longitude, as shown in the table and figures, of features 16 and 17 are swapped; and feature 19 was labelled in an incorrect location and has had its latitude, longitude and position in the figures updated. All other data remains the same.