APPENDIX II. 
ERRATA AND ADDENDA. 
The paging after page 38 should be as follows Page 37 should be 
39, 38 should be 40, 39 should be 41, 40 should be 42. 
Page 26, line 4. For “ Dr. H. P. Brady” read “ Dr. H. B. Brady.” 
Convolvulus bidentatus ” read “ Conovulus biden- 
tatus .” 
For “ Lcuna divaricata” read “ Lacuna divaricata.” 
For “ Lacuna palidaul” read “ Lacuna palidula.” 
For “ scalaria Turtonis *’ read “ Scalaria Turtonis .” 
For “ Murex erinaceous” read “ Murex erinaceus.” 
For “ tilus adriaticus var. ovalis” read “ Mytilus 
adriaticus, VAR. ovalis.” (In some copies only.) 
For “ Cardiam pygmceum'' 1 read 6t Cardium pygmceum .” 
For “ Thracia pubescans” read “ Thracia Pubescens.” 
For “ Gastrochcenia modiolina ” read “ Gastrochcena mo- 
diolina. 
,, 35. After Terebella conchilegia, add 
Echinus miliaris, Leske. Very abundant in the Thracia convexa zone 
of the Belfast Estuarine Clay. Near the upper limit of this zone I found a 
bed marked by a closely-packed layer of the shells of this urchin. The 
shells are of large size. The species still lives abundantly in our bay. 
29, line 5. For 
29, line 18. 
29, line 20. 
30, line 15. 
31, line 4. 
32, line 29. 
33, line 10. 
34, line 36. 
35, line 12. 
Amphidotus cordatus, Pennant. Specimens of this “ heart urchin ” 
are scattered throughout the Thracia convexa zone in the Belfast bed, but 
not plentifully. This species occurs on the County Down coast, but I am 
not aware of its living in Belfast Lough. A sandy bottom is the habitat 
usually assigned to this urchin, but our fossil specimens must have lived on 
a bottom entirely muddy. 
