FAUNA 



Brachiopoda 



' Genus Micromitra Meek 



Micromitra (?) sp. 



[PI. Ill, fig. 37, 38] 



One small dorsal valve (fig. 37), slightly convex, corneous, very much resembles Micro- 

 mitra pusilla (Linnaesson) from the Paradoxides fordihammeri zone of Scandinavia, but the 

 insufficiency of the material does not allow of a safe identification. 



An incomplete, somewhat distorted valve (fig. 38), which seems to be depressed conical, 

 shows similar sculpture and may probably be the ventral valve of the same species. 



Genus Lingulella Salter 



Lingulella (?) sp. 



[PI. m, fig. 31—33] 



A couple of specimens are present, all of them poorly preserved. Whether they belong 

 to one or more species cannot be decided. 



Genus Acrotreta Kdtobga 

 Acrotreta sp. 



[PL m, fig. 34—36] 



Three small dorsal valves have been found. The specimen in fig. 36a, b (piece and 

 counterpart) shows the interior of the valve with well-marked cardinal scars and traces 

 of the median ridge. 



Undetermined brachiopod 



[PI. m, fig. 39a, b] 



The specimen has been lost, and its probable systematical position cannot be determined 

 by aid of the figures only. 



Trilobita 



Genus Agnostus Beonqniaet 

 Agnostus pisiformis pater n. subsp. 



^ [PI. I, fig. 1; pl. IV, fig. 9, 10] 



One single pygidium seems to be identical with a hitherto undescribed Swedish form, 

 which is very closely related to Agnostus pisiformis and here called A. pisiformis pater 

 indicating that it is looked upon as an ancestral form of the said species. As regards 



3AH, XXI, 8 2 



