KONGL. SV. VET. AKADEMIENS HANDLINGAK. BAND. 19. N:0 6. 99 



Height 23 millim., br. 20 millim. The aperture has iu beight 13 luillim., in 

 breadth 10 mill. Apical angle G9°. A speciineii froin Wisby is 29 millim. high aucl 

 at largest 25 mill. Apical angle 71°. 



Tliis species lias been found in six specimens in the shale at Djupvik in Eksta 

 and in fifteen specimens in the same shale bed near Wisby; from the låter locality 

 nuclei mostly have been collected. A single specimen from the middle limestone stra- 

 tum near Wisby belongs probably also to this species, as well as two badly preserved 

 specimens from Kålens Qvarn, north of Wisby. 



8. Pleurotomaria latezonata n. ') 



Pl. X tig. 1. 



Shell conical, turbinated, with five tumid whorls and fragments of the sixth or the 

 body whorl. Slit band situated on the middle of the free vvhorl or near the superior 

 suture in the lower ones. In its ornamentation it resembles much that of the prece- 

 ding species, but it is not so much concave or scooped out, the crescents are not so 

 much curved, rather thicker or coarser. The ornamentation below this band consists 

 in crossbarred stria3, with a few larger, longitudinal ribs. The suture is deep. The 

 shape of the aperture and the umbilicus cannot be ascertained as the shell is broken 

 in those parts. 



Height 7 millim., breadth 6 millim. Apical angle 77°. Only one specimen has 

 been found in the middle limestone of Wisby (b). 



It comes near to the preceding species through its slit band, but the shape and 

 ornamentation of the whorls differ, being in this species thrice as broad as high and 

 in the former nearly four times as broad as high. 



9. Pleurotomaria Hindei n. 



Pl. XIX f. 15—16. 



Shell turbinated with seven tumid, transverse whorls, of which Ihe body whorl is 

 more than double the size of the others and nearly double as broad as high. The slit 

 band, which is situated a little below the median line of the body whorl and near the 

 upper suture in the other whorls, is broad, with thick, projecting margins and covered 

 with regularly curved crescents of groAvth. There are some faint traces of longitudinal 

 lines Crossing them. The surface below the slit band is evenly rounded, nearly flatte- 

 ned out. There are minute, longitudinal, as well as transverse strias of equal size 

 forming regular squares and at their meeting point there seems. to have been a small 

 gibbosity, causing a prickly surface. The umbilical surface is corroded, but, as discer- 

 nible on some patches, has had the same sculpture. The aperture is nearly circular, 

 the outer lip thin, the inner one reflexed as to form a little tube along the narrow 

 umbilicus and broadly enlarged at its basis. H. 15 mill., br. 13 mill. 



') I was not aware that a Pleurot. latifasciata Mac Coy already existed, wlien I had uamed this species 

 Pl. latefasciata on page 18. 



