ERRAT A. 
Page 188 : Struthiolaria conveza— Holotype is from loc. 1089. 
Plate 16 (facing page 192): Figs. 11 and 12 are x 2, not x 1. 
Page 646: In text of fig. 14, for Polyymoria read Polymoria. 
Page 657, line 6: For 9 read д. : 
Page 660, line 3: For pls. 27-28 read pls. 27-36. 
