152 T. Davidson — On Tertiary BracMopoda. 



sham sands, as well as of the " Sables Moyens " of France. In this 

 formation the only Brachiopod hitherto discovered is the Argiope 

 Lefevrei. Geologists have attributed to the Loioer portion of this 

 division the sands of Lede near Alost, and whicb contain the Nummu- 

 lites Heherti {N. variolata). Here also is found tbe Terehratula 

 Kicksii, T. hisinuata, Terebratidina Putoni, and Crania Nysti. This 

 formation occurs at Dieghem, Jette, and probably likewise at Gand. 

 It seems to be present at Mount Cassel near Lille, and where Tere- 

 hratula Kicksii has been collected by M. Nj'st, myself, and others, 

 although M. Deshayes makes no allusion to it in bis magnificent 

 work. 



To the loioer division M. Nyst refers the beds of Cbercq, near 

 Tournay, where a Terehratula and a Terebratulina (PL VIII. Figs, 9 

 and 10) have been found, and which he thinks would correspond to 

 the Thanet sand, and in France to the Sables de Bracheux. 



In his publications on the Tertiary deposits of Belgium, M. 

 Dewalque gives the name of Bruxellien Superieur to the '''Laekenien 

 Inferieur" of Dumont and Nyst : they represent the same horizon. '^ 



I regret to say that I am not yet sufficiently well acquainted with 

 the Tertiary species of Germany to be able to treat them as I have 

 done those from Belgium. 



Dr. 0. M. Wiechmann, of Mechlenburg, has, however, furnished 

 me with the following list : — 



LOWER. — Etage OLTGOCENB^Systeme Tongrien inferieur. 



Terehratula grandis, Blumb. Latdorf, near to Bernburg, Helmstadt, and Brandhorst, 

 near Blind (AVestphalia). 



Terebratulina lattorfensis, Giebel. Latdorf. 



Terebratulina striatula. Helmstadt and the neigbbourbood of Magdeburg. 



Terebratulina ornata, Giebel {T. Nysti, Bosquet). Helmstadt, Latdorf, Unseburg, 

 Atyendorf, Westergeln, Osterweddingen. 



Argiope multieostata, Bosquet [^ plana., Giebel). Latdorf. 



Thecidium Mediterraneum, Risso, var. Latdorfensis, Dav. Latdorf. 



MIDDLE. — Etage OLiGOCENE=Systeme Tongrien superieur and rupelien (Du- 

 mont). 



Terehratula grandis, Blum. {—T. subrhomboidea, Speyer). Neustadt, Magdeburg, 

 SoUingen (Hanover). 



Terehratula opercularis, Sandb. Basin of Mayence, "Waldborkelheim. Prof. 

 Koenen unites this species with T. grandis. 



Terebratulina fasciculala, Sandb. Basin of Mayence, "Waldborkelheim. This species 

 is very nearly related to the T. ornata of Giebel. 



Argiope subradiata, Sandb. Basin of Mayence, Waldborkelheim. 



Argiope crenata, Sandb. Basin of Mayence, Waldborkelheim. 



Argiope megacephala, Sandb. Same locality. 



fPPfii?.— Oligocene. Basin of Cassel, Sands of Doberg, near BLinde, of Crefeld, 

 of Wiepke, Limestone of Sternberg. 



Terehratula grandis. Doberg, near to Biinde (Westphalia), Astrupp, near Osnabriick, 

 basin of Cassel, Wiepke. 



Terebratulina subpulchella, v. Miinst. Astrupp. 



Flatidia pusilla, Phil. (Tereb.) Basin of Cassel, Crefeld. 



In the Miocene Sands (Systeme Diestien) of Germany we find 

 only the Tereh. grandis. Herr Fuchs, Curator of the Imperial Museum 

 of Vienna, has furnished Dr. C. M. Wiechmann with the following 



1 An instructive paper, entitled "Note sur la Faune Laekenienne Superieur des 

 environs de Bruxeiles," has been recently published by MM. Lefevre and G. 

 Vincent. 1873. 



