KONGL. SV. VKT. AKADEMIENS IIANDL. BAND. 19. N:n 6. 143 



coinpletely closed in the interiör, the columella being solid, fig. 4. The apex is a horao- 

 genous mäss of calcareous spar, fig. 4, and consequently the nuclei, fig. 5, are ending 

 in an obtuse truncation. H. 24 millim., width of body whorl 12 millira. 

 Size of the whorls in two specimens. 



Spec. A. Spec. B. 



i'horls. 





H. 



Br. 



Whorls. 





H. 



Br. 



1 



8 



mm. 



12 



mm. 



1 



8 



mm. 



12 mm 



2 



5 



)) 



9 



>j 



2 



5 



» 



9 » 



3 



5 



» 



6 



» 



3 



4 



>) 



7 » 



4 



3 



» 



5 



» 



4 



3 



)) 



5 » 



Very common in the shale at Djupvik in Eksta and also in few specimens 

 from Wisby. 



2. Loxonema attenuatum n. 



Pl. XVIII fig. 3—5. 



Shell elongated, turriculate, of 8— 9 whorls, nearly as high as broad and in some 

 specimens exactly so, moderately ventricose or even approaching to a cylindrical shape 

 with straight sides, a little constricted around the inferior edge and slightly covering 

 the shallow suture. The apex of the angular and very fine stria? is situated a little 

 higher than those of the preceding species or near the median line. The corrosion of 

 the surface has caused a false appearance as of a slit band. The aperture is longer 

 than broad, oval, the interiör lip broad and reflexed; no umbilicus is visible. Length 

 of a fragment 27 millim., breadth of body whorl 9 mill., probable length of complete 

 specimen 35 raill. Dimensions of whorls in four specimens: 



A, whorls. H. 



Br. 



B. 



whorls. H. 



Br. 



C, 



whorls. H. 



Br. 



D, 



whorls. H. 



Br. 



1 10 mm. 



11 mm. 





1 



8 mm. 



10 mm. 





1 9 mm. 



9 mm. 





1 



wantin 



g- 



2 7 )) 



8 » 





2 



6 » 



8 .) 





2 7 » 



7 )> 





2 



7 mm. 



8 mm 



3 5 » 



6 » 





3 

 4 



4 » 

 3 » 







3 5 » 



5 » 





3 



4 

 5 



5 » 

 4 » 

 3 » 



6 >. 

 4 » 

 3 » 



Nine specimens have been fonnd in the limestone of Samsugn in Othem. 

 A fragment of a large Loxonema from FoUingbo somewhat reminds of this spe- 

 cies but cannot be defined with certainty. 



3. Loxonema intumescens n. 



Pl. XV fig. G. 



Shell turriculate, with a slowly tapering spire, of which six whorls are left. 

 These are ventricose, larger than high in the foUowing ratio. 



