Fossil Terebratule. 443 
near Cologne, described and figured by Schlotheim in 1822 under 
the name of Terebratulites aperturatus, Nachtragen, pl. 17. fig. 1. 
Lamarck’s name published in 1819 ought to have priority ; the 
species would therefore be the Spirifer canalifera (Val. Sp. S.). 
All the figures referred to in pl. 244 of the ‘Encyclopédie’ do 
not however belong to the same species ; fig. 5 would be the Spi- 
rifer canalifera, fig. 4 the Spirif. Verneuilit (Murch.), and fig. 6 
the Spirif. Archiact (Murch.). We also find assembled under 
the same head in the collection of the Garden of Plants, as well 
as at B. Delessert’s, besides the above-mentioned species, speci- 
mens of Spirif. rostratus from the lias, and Spirif. Bouchardit 
from the Devonian beds. One specimen of Spirif. Verneuilit, 
which I figure in my plate under the number 40 A, shows the 
perfect deltidium, rarely preserved in the Spirifers of that species. 
41. Terebratula levicosta, Val. im Lamk. Pl. XV. fig. 41. 
7’. testa trigonata, gibba, lateribus sulcata: in medio valvee majoris sinu 
et minoris costa lata, utriusque leevibus, transverse striatis: cardine 
recto, nate recurva. 
Obs. No reference as to figure is given by Lamarck ; all that is 
stated is, that the “ fossil comes from Benberg near Cologne.” 
However M. Valenciennes kindly informs me, when sending his 
type specimens, that he received the shells on which he established 
the species in 1817 from Prof. Néggerath on his visit to Bonn: 
it is the same shell figured and described in 1822 by Schlotheim 
under the name of Jerebratulites ostiolatus (Nachtragen, pl. 17. 
fig. 3), placed afterwards in the Spirifers by B. von Buch (Mém. 
Soc. Géol. de France), and by Bronn in Konig’s genus Trigo- 
notreta ; but as M. Valenciennes appears the oldest describer of 
the species, it should retain the name of Spirifer levicosta (Val. 
Sp. 8.); it belongs to the Devonian beds of the Eifel, and not 
to Benberg as stated by Lamarck. 
42. Terebratula intermedia, Val. in Lamk. Pl. XV. fig. 42. 
T’. testa subtetraédra, dilatata, plicata, simuata, 4 costis ad sinus 5 ad 
latus : nate brevi. 
Obs. I was not able to find the original specimen on which 
the species was establisbed, but reference is made to pl. 245. 
fig. 3a, b. of the ‘ Encyclopédie Méthodique,’ which is sufficient. 
I have thought it advisable, in order to complete the series, to give 
here the figure out of that work. Lamarck states that his spe- 
cies is intermediate between Terebratula tetraédra and plicata: 
it evidently belongs to the jurassic period. 
43. Terebratula alata, Val. in Lamk. Pl. XIV. fig. 43. 
T. testa subtrigonata, subgibba, superne sinu cavo exarata, creberrime 
sulcata ; nate brevi. 
