NATIONAL MUSEUM, MELBOURNE- MEMOIRS, No. 2. 
CORRIGEN O A. 
20, line ii, for “Petrefactiae,” read “ Petrefacta.” 
31, line 9, for “39, 43,” read “39-43.” 
37, line 13, for “ P. VI,” read “PI. III.” 
40, line 24, for “ Petrefactiae, read “ Petrefacta.” 
42, line 8, for “ PI. V,” read “ PI. IV.” 
42, line 9, for “ 63a-64, 65 (juv.),” read “63a, 64-65 (juv.).” 
44, footnote, for “Petrefactiae,” read “Petrefacta.” 
48, ,, ditto. 
49 > >> >> 
50, space between descriptions of Modiolopsis melbournensis and M. complanata. 
55, footnote, for “ Petrefactiae,” read “ Petrefacta.” 
