CORRECTIONS OF NAMES IN EXPLANATIONS OF PLATES. 



The corrections are marked by broad-faced type = Welschia. 



The references to pages where the correction is made follow the name. The Arabic numerals 

 refer to the main work ; the small Roman to the Supplement. 



Where no author's name is appended, the writer of this Monograph is the giver of the trivial 

 appellation. 



PLATE I. 



Murchisonse hemera. 

 Welschia obtusiformis, p. li. 



PLATE II. 



[Murchisonse hemera.] 

 Figs. 



3, 4. Strophogyria pinax, p. lxiii. 



[Concavi hemera.] 



6, 7. Ludwigella concava (J. Sowerby), p. lxxxvi. 



About drawing of Fig. 7 see p. 62. 



PLATE III. 



[Murchisonse hemera.] 

 3. Ludwigina patula, p. lxi. 



4, 5. Ludwigia tuberculata, p. lxix. 



[Bradfordensis hemera.] 

 6, 7. Brasilina Baylii, p. lxxxiii. 



PLATE IV. 



Concavi hemera. 

 1, 2. Ludwigella arcitenens, p. lxxxv. 

 3, 4. Ludwigella cornu, p. lxxxv. 



Bradfordensis hemera. 



5, 6. Brasilia bradfordensis, p. lxxx. 



7. Hyattina ? sp , p. cxxx. 



8. Apedogyria platychora, p. lx. 



PLATE V. 



Bradfordensis hemera. 

 Apedogyria platychora, p. lx. 



PLATE VI. 



Concavi hemera. 

 Lucya magna, p. lxxvi. 



PLATE VII. 



Bradfordensis hemera. 

 Figs 



1, 2. Ludwigia ambigua, p. lxxii. 

 3, 4. Brasilia effricata, p. lxxxii. 



[Discitse hemera.] 

 5, 6. Braunsella lenis, p. cii. 



Bradfordensis hemera. 

 7. Ancolioceras costatum, p. xlviii. 



PLATE VIII. 



[Concavi hemera.] 

 1,2. Ludwigella concava (J. Sowerby), p. 

 lxxxvi. 



Discitse hemera. 



3, 4. Graphoceras decorum, p. xcviii. 



5, 6. Brasilia sublineata, p. lxxx. 



7, 8. Graphoceras flaccidum, p. xcviii. 



PLATE IX. 



1 — 4. Lucya cavata, p. lxxvi. 

 5, 6. Graphoceras stigmosum, p. xcvii. 

 7. Graphoceras limitatum, p. xcvi. 

 8 — 10. Graphoceras stigmosum (abnormal), p. 



PLATE X. 



1, 2. Depaoceras formosum, p. lxxix. 



3, 4. Brasilia pulchra, p. lxxxi. 



5, 6. Graphoceras v-scriptum, p. xcvi. 



7, 8. Graphoceras limitatum, p. xcvi. 



9. Graphoceras undulatum, p. xcvii. 



10, 11. Platygraphoceras apertum, p. xciv. 



(1) 



