( 145 j 
Through the stone run intersecting passages of the same mineral. 
Here and there are small grains of glauconite and pyrites-crystals. 
Besides many Paradoxides-fragments arranged in layers, my stone 
contains remains of horn-shelled Brachiopoda. The former are eream- 
coloured and do not allow of being further defined. Among the latter 
are easily found valves of Acrotele granulata Linn. 
About this stone I have up to this time nowhere found any infor- 
mation. It is probably of the same age with the layers of Paradox- 
ides Tessini Brongn., or it is a little older than these are. 
4. Gravel-stone with Paradoxides Tessini Brongn. 
a. It is a piece of fine-grained, hard sand-stone, yellow-grey inside 
and light grey nearer the surface, whilst the surface itself is brown 
in some places. With a magnifying-glass some grains of glauconite 
and a few mica-scales may be distinguished in it. 
With muriatie acid applied to it, there is no effervescence; conse- 
quently it does not contain caleium-carbonate. There are no layers. 
The chief remnant occurring in this erratic-block is a mid-shell, a 
little more than 1 centimetre long, of a Paradoxides, which mid-shell 
is visible for the greater part. The eream-coloured shell is still almost 
entirely present. That this remnant originates from Paradoxides Tessini 
Brongn., could be easily determined by means of the description and 
the pictures which Linnarsson ') gave us of this kind. Prof. Mosrre, 
to whom I had the honour of showing this erratic-block, when visit- 
ing Lund, thought my determination right. 
The glabella increases in breadth towards the front; quite near 
the front it is broadest. The front-edge is rounded off. On each side 
the glabella has two side-furrows, which in the middle run into those 
of the other side, which is also the case with Paradoxides Oelandicus. 
Of smaller furrows, which according to LINNARSSON are sometimes 
found in the latter, nothing is to be seen here. The edge before the 
glabella is very narrow in the middle and broadens towards the ends. 
This is characteristic of Paradoxides Tessini, whilst with Paradoxides 
Oelandieus the breadth of the edge before the glabella is rather con- 
siderable, and remains about the same towards the sides. 
We also find here a piece of a thorax-ring of a kind of Paradoxides, 
in which it may be seen that the pleurae first run straightway towards 
the outside and then turn to the back, forming an almost right angle. 
This also oceurs with Paradoxides Tessini, whereas with Paradoxides 
Oelandicus this turning to the back takes place gradually. 
1) Linnarsson, Om Faunan 1 Kalken med Conocoryphe exsulans (,Coronatus 
kalken"). Sveriges geologiska undersökning. Series CG, N° 35 pag. 6. Scene | fig 1—4, 
