KONGL. SV. VET. AKADEMIENS HANUL. BAND. 19. N:0 6. 131 



The original specimen of Hisingek is from östergarn from where lately more 

 specimens bave been obtained, and quite similar ones are very common in tbe lowest 

 shale near Wisby. It bas also been found in tbe limestone of Gotbemsbammar, in 

 tbe sbale beds and limestone of Slite, on Furillen, in Foilingbo and in tbe limestone 

 at Kålens Qvarn. 



8. MurcMsonia paradoxa n. 



Pl. XXI iig. 1—3. 



Sbell cylindrical, turreted, slowly increasing in widtb, whorls seven in tbe best 

 preserved of two fragmentary specimens. Tbe slit band is situated a little above tbe 

 median line of tbe whorls, it is elevated, with a flat surface, crescents regular, dense, 

 placed obliquely on tbe band which is crossing tbe axis of tbe sbell in a highly acute 

 angle. Tbe whorls which are of equal breadth and height, are of an only slightly 

 convex outline, though a little more bulging out in one of tbe specimens. They are 

 adorned with rainute transverse lines of tbe same pattern as in M. attenuata and 

 M. cingulata. The uppermost margin of tbe whorls is at first constricted by a 

 shallow groove, then widened in a stringlike i'ib, which covers tbe basis of tbe over- 

 lying whorls. The state of preservation of tbe specimens prohibits to ascertain tbe 

 sbape of tbe aperture and tbe umbilicus. Height of most complete specimen 36 mm., 

 br. 10 mm. 



Råte of growtb of tbe whorls 



: 











H. 



Br. 



1 



10 



mm. 



10 mm. 



2 



8 



» 



9 » 



3 



7 



» 



8 » 



4 



5 



» 



7 » 



5 



5 



)) 



6 » 



6 



4 



» 



5 » 



Two specimens bave been obtained from the gray limestone of Lindeklint. 



Divisio II. ORNATS. 



9. Murcliisonia crispa n. 



Pl. XII fig. 13—14. 



Sbell turriculate, obese, tbick, with six ventricose whorls which at their lowest 

 edge near the suture are constricted, forming a narrow vertical belt. The slit band is 

 placed much beneath tbe middle line of tbe whorls, a little above the suture. It is not 

 distinctly separated from the other surface through bordering lines and the cre- 

 scents are in direct continuation with the transversal lines. These are distantiated, 

 lameliar, imbricated. The slit is well preserved, shovt and tongue shaped. No um- 



