E R R A T A . 
Page line 2*;, for Tanystlyum. read Tanystylum. 
Page 37, line 6 from bottom, for cincria. read cinerea. 
Page 55. line 1 1 . for Situate, read Scituate. 
Page 55. line 16. for S. stiryuehvs. read A. steirynchus. 
Page 55. line 20: p. 61. ilne 12 from bottom: p. 70. line 3 from bottom : p. 91. line 8 
from bottom; p. 92. line 6 from bottom, and elsewhere, for (Efversight read 
(Etversigt. 
Page 60, line 26: and p. 70. line 19, for east-south-east read west-south-west. 
Page 61, line 6 from bottom for Mere, read Meere. 
Page 69. line 9 from bottom, for Trnside. read Tyneside. 
Page 1 03. line 1 1 . for mixta, read stenolepis. 
Page 106. line 16. for Lopha**tta. read Lophopsetta. 
Page 135. line 19. for Kiebsdyrfamilien. read Krebsdyrfamilien. 
Page 136, last line of errata, for 129. read 120. 
Page 259, line 1. for VI. read V. 
Page 432. line io. for hyperboreus. read hyperborea. 
Page 499. lines 14 and 1 7, for pygma-ux, read pygnuita. 
Page 501, line 4 of note, for Bemice/txix, read Bemiderms. 
Page 504, line 22, for Lainalhe. read lamellae. 
Page 507, end of line 10. of note, for i, read , . 
Page 511, line 12. for Pettit, read Petit. 
Page 512, line 3 from bottom, for scalariformz. read sealari/ormis. 
Page 537. line 5 from bottom, for eQlialiS. read SeQUaliS. 
Page 5>0. line 1. for SUbvota. read SUbova ta. 
Plate XI.II for correct numbers indicating amount of amplification, see pp. 583, 584. 
For other errata, see pp 136. 253, 446. 
