4r 
Belemnites Aalensis Yoltz, Ostracites crista-galii^ Schlotheim und 
Ostracises eduliformis , Schlotheim, am Stuifenberg.” Most 
foreign geologists, however, refer Zieten’s T. spinosus to 
T. senticosus , Schlot. 
von Buch. (Soc. Geol. France, Tome 3, 1838,) figures 
Terebratula senticosa , Plate xvi., figure 5, refers to Zieten, 
Wurtemb , Yerst, Plate 44, figure 1, and gives the following 
description (page 162)—“ Espece tres voisine de la T. spinosa , 
garnie comme elle, et aussi fortement qu’elle, d’epines pointues; 
seulement sa forme aplatie et sa faible hauteur la font facilement 
distinguer comme espece particuliere.” He gives the locality 
“ Hans les couches jurassiques inferieures, au-dessus du lias 
a Grumbach pres Amberg.” It will be observed that this is the 
same locality as that given by von Schlotheim for his 
Tercbratulites senticosus : but von Buch’s figure does not 
represent the shell found in Somerset and Dorset. 
von Buch, page 161, Plate xvi., figure 4, gives a long 
description of Tercbratula spinosa , and refers to Knorr. He 
says that the shell is rather spherical and strongly convex, the 
width being always greater than the length ; and describes the 
curvature of the valves ; that the beak is recurved, the plaits bi¬ 
furcate, and are covered with little spines, &c. He states that 
this species abounds “ dans les couches jurassiques inferieures 
au-dessus du lias—Localities, Muttenz, in Basle ; Blomberg, 
near Furstenberg ; Wartenberg ; at Schweins-Muhl, near 
Babenstein; Kasendorf, near Thurmau; Stuifenberg, near 
Goeppingen; near Giengen. In great quantities near Yenne, 
at the north of the Osnabruck.” He gives several French 
localities, and says it occurs in England, in the Inferior Oolite 
of Dundry (in the Berlin Museum). The last statement is 
important, as showing that von Buch refers to the same species 
as that which we call R. spinosa in England. 
Phillips’ (Geology of Yorkshire, 1829,) figures Terebratula 
spinosa , Plate ix. ? figure 18, page 151, from his Bath Oolite, 
which is now considered to be part of the Inferior Oolite. His 
figure is not good. 
Broun (Lethea geognostica, 1837,) page 296, describes 
Terebratula spinosa. His figure, Plate xviit., figure 2, is 
remarkably good, showing the raised mesial fold which 
