312 Messrs. W. K. Parker and T. R. Jones on the 



(see Ann. Nat. Hist. ser. 3. vol. iii. p. 480 ; and vol. v. p. 174,&c.) 

 " Siderolites," " Calcarina," and " Siderolina " (the last applied 

 by D'Orbigny to one of the varieties of C. Spengleri from Maes- 

 tricht) are synonyms. As the third name has also been given 

 to some of the star-shaped Orbitolina of the South Seas, it is 

 advisable, that we may avoid confusion, to retain " Calcarina " 

 as the name of the subgenus. 



Calcarina Spengleri has the following synonyms : — Siderolites 

 calcitrapo'ides, Lamarck, S. calcitrapes, Montfort, Asteriatites 

 siderolithes, Schlotheim, Sideroporus calcitrapa, Bronn, Siderolina 

 calcitrapo'ides, D'Orbigny, S. calcytrapo'ides, Defrance, and Side- 

 rolithus calcitrapoides, Bronn. 



25. Vol. i. p. 154. 39 e genre. Numulites denarius. De 

 Montfort seems to refer to Nummulites l&vigata, Lamarck*, as 

 being the same as his figured specimen ; but the latter is totally 

 valueless as a means of recognition. 



26. Vol. i. p. 156. 40 e genre. Lycophris lenticularis. This is 

 the " Nautilus lenticularis, var. ft" of Fichtel and Moll. A 

 small granulose Nummulite. 



27. Vol. i. p. 162. 41 e genre. Botalites radiatus. This is Fich- 

 tel and Moll's " Nautilus lenticularis, var. 8." A small Num- 

 mulite of the u radiate " group ; a variety of Nummulina planu- 

 lata. 



28. Vol. i. p. 166. 42 e genre. Egeon perforatus. This is the 

 " Nautilus lenticularis, var. e," of Fichtel and Moll. A small 

 granulated Nummulite of the " radiate n group. 



29. Vol. i. p. 170. 43 e genre. Borelis melono'ides. The Alveo- 

 lina Melo, var. /3, F. & M. Ehrenberg and Bronn adopt "Bo- 

 relis 9 - as the generic name, in preference to " Alveolina." (Leth. 

 Geogn., 3rd edit., iii. pt. 5. p. 199.) 



30. Vol. i. p. 174. 44 e genre. Miliolites sabulosus. A very bad 

 figure of a fusiform Alveolina, such as are abundant in some of 

 the Tertiary beds in the environs of Paris and in Touraine, 

 where, as De Montfort declares with great truth, the number 

 of the shells of these little Microzoa surpasses the imagina- 

 tion. 



31. Vol. i. p. 178. 45 e genre. Clausulus indicator. This is 

 Fichtel and Moll's " Nautilus Melo, var. a" a nearly spherical 

 Alveolina. 



32. Vol. i. p. 186. 47 e genre. Discolites concentricus. This is 

 the Orbitolites complanatus, Lamarck. De Montfort's account 

 of the large specimens from Grignon and Cortagnon (sometimes 

 an inch broad) is very correct, except that the spirality ceases 

 always with the young state, and in fine specimens is scarcely at 

 all. traceable. 



* See Annals Nat. Hist. ser. 3. vol. v. p. 290. 



