ADDITIONS AND CORRECTIONS. 225 



Page 96. Modiola ligeriensis (d'Orb.). The following should be added to the 

 synonymy: — Modiola striata, Drouet, 'Mem. Soc. Linn, de Paris,' vol. iii (1824), 

 p. 192, pi. vii, fig. 5. Non Modiolus striatus (Mont,), Maton and Rackett, 1807. 

 Non Modiola striata, Def ranee, 1824. 



Page 106. Septifer lineatus (Sow.). A specimen from the Belenmitella 

 mucronata zone, near Fareham (Hants), has been found by Mr. C. Griffith, of 

 Winchester. 



Page 106. "Family Dreissensiidas, Gray," should be transferred to the middle 

 of Page 110. 



Page 111. Line 11 should folloAv line 5. 



Page 112. Footnote 1. For vol. li read vol. xliii. 



Page 135, line 3. For Kreide read Neocoms. 



Page 143. For Plicatula sigillina read Dimyodon Nilssoni {Hagenow), 1842. 

 Additional synonymy. 



1842. Ostrea Nilssoni, F. v. Hagenow Neues Jahrb. fur Miu., etc.. p. 546. 



1891. Dimyodon Nilssoni, J. Biihm. Die Kreidebildungen des Furbergs, etc. 



(Palseontographica, vol. xxxviii), p. 89, 

 pi. iv, fig. 7. 



1892. E. Stolley. Die Kreide Schleswig-Holsteins (Mit- 



theil. a. d. Min. Instit. Universit. Kiel, 

 vol. i), p. 242. 

 1895. Ctclostreon Nilssoni, F. Vogel. Holland. Kreide, p. 14, pi. i, figs. 4 — 7. 

 1900. Dimyodon Nilssoni, K. A. Grdnwall. Meddel. Dausk. geol. Foren.,No. 6, 



p. 75. 

 1902. •/. P. /. Ravn. Mollusk. i Damuarks Kridtaflej. I, 



Lamellibr. (K. Danske Videusk. 

 Selsk. Skrift, 6. Esekke, nat. math. 

 Afd ., vol. xi), p. 109. 



After the publication of Part ITT of this Monograph I received a copy of a 

 paper by K. A. Gronwall on Dimyodon in the Danish Chalk. From the figures 

 there given, and also from the one given by Bohm, I think that there can be no 

 doubt as to the identity of Plicatula sigillina with the form described (but not 

 figured) by von Hagenow as Ostrea Nilssoni. This identity has been confirmed by 

 Mr. J. P. J. Ravn, of Copenhagen, to whom T have sent specimens of Plicatula 

 sigillina from Norwich. 



30 



