10 APPENDIX. 



Page 6, Lingula tenuis, Sow. 



From want of specimens I could not illustrate this species sufficiently in 1852, but now I am able to add 

 several figures taken from the most perfect examples in the collection of Mr. Wetherell. See Appendix, 

 PI. a, figs. 3, 4, and 5. 



Pages 6, 7, and 9. 

 For " Orbicula," read "Discina." 



Page 9. 

 Second line under the woodcut, for "on the anterior side," read "on the lower side." 



Page 11. 



Note 1, add, Mr. Barlee has taken them (Argiope cistellula) forty miles east of Zetland (Forbes and 

 Hanley, 'British Mollusca,' Appendix, vol. iv, p. 257). 



Page 16, Terebratula cranium. 



Note 1. The illustration PI. I, fig. 8 c?, was drawn from a very imperfect specimen, but I am 

 now able to refigure the same valve (PI. a, fig. 1), by which it will be seen that the species possessed an 

 elongated loop, and consequently belongs to the Section Waldheimia of King. Four examples of this 

 rare species have lately been procured by Mr. Barlee, thirty miles east of Zetland (Forbes and Hanley, 

 'British Mollusca,' vol. iv, p. 257). 



Page 19, Ter. bisinuata. 



I have represented (PI. a, fig. 2) the perfect example found by Mr. Cunnington, and mentioned in 

 note 1, p. 19. 



PART II. 



MONOGRAPH OF CRETACEOUS SPECIES. 



(In the concluding portion of this monograph, published in 1854, will be found most of the additions 

 and corrections I have been able to introduce.) 



Page 11. 



Line 1, for " Egnabergensis" read " Ignabergensis." 

 „ 2, for "Numulo" read "Numulus minor," and for "Brattenbergensis" read "Brattenburgensis." 

 ,, 14, for "Mondergattang" read " Mon der Gattung." 



Page 15. 



Line 11. Sig. Michelotti having obligingly sent me specimens of his Th. Broderipii, I was able to 

 ascertain that they belong to Thecidium Mediterraneum. This species has also been discovered by Sir C. 

 Lyell, in the miocene beds of the Canary Islands. 



