The publishers regret to announce that the incorrect caption was published for Fig. 2 in the original article (Bick et al., Reference Bick, Ó Foighil and Coote2014.) The correct figure and caption are given below.

Fig. 2 The overall relative frequencies of (a) seven endemic species of Tahitian Partula (P. otaheitana, n = 18,955; P. nodosa, n = 1,922; P. affinis, n = 1,560; P. hyalina, n = 589; P. clara, n = 819; P. filosa, n = 211; P. producta, n = 29) collected by Crampton (1916) in the 62 valleys he surveyed during 1906–1909, and (b) of these seven species (P. otaheitana, n = 7,631; P. nodosa, n = 1,732; P. affinis, n = 692; P. hyalina, n = 369; P. clara, n = 306; P. filosa, n = 211; P. producta, n = 29) in 23 Tahitian valleys that retain recent survivors (Table 1).