KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 19. N:0 6. 195 



side gentl}' curved, lip much involute. H. 60 raillim., bi-. 19 milL, length of body 

 whorl 35 milL, width of" same 6 mill., length of aperture 29 inilL, width of same 8 

 millim. 



Abundant at Länsa and other places in Fårö, at Wialmsudd in Bunge, in the 

 canal from Stormyr in Rute, in Martebo, in the shale beds of Wisby, Westergarn and 

 Gnisvärd. 



The specimen delineated on plate XV fig. 48 deviates thus far, that it is more 

 slender and the whorls relatively much longer than wide, but as there is only one 

 specimen as }'et found, I cannot ascertain if it is a distinct variety or species. 



Gen. EUCHRYSÄLIS Laube. 



Eiichrysalis 1868. Laube Denkschriften der Akad. der \Vissensch. in Wien 2e Abtheil., 69. 



Shell elongate, icidest at the micldle of its length, whorls short and numerous, smooth 

 and glossy, suture shalloic, the a'perture long, narroio. outer lip sharp and thin, the inner 

 lip involute as in Daphnella, ending upwards in a very shalloic notch. 



After having compared specimens of Euchrysalis fusiformis Munstek from St. 

 Cassian with specimens from Gotland described below, I cannot but think that they 

 all belong to the same genus. The Silurian species deviates, however, from the Tri- 

 assic ones in having a fine sculpture on the glossy surface. The chnracteristic form 

 of the aperture and the general shape of the shell itself is quite identical. No species 

 seem hitherto to have been found in the Devonian and Carboniferous formations. 



Euchrysalis lineolata n. 



Pl. XVIII tig-. 65—68. 



Shell conical, tapering, slender, acuminated and straightly grown, with nine whorls, 

 regularly increasing in size, the bod}' whorl being only twice as large as the next pre- 

 ceding. The whorls are only slightly convex or tumid around their middle and the 

 .suture is not much impressed. The surface is sculptured by perpendicular, equidistant, 

 minute ridges, which have their inner side thrice as large as the exteriör one. For 

 the rest the surface is smooth. The aperture is, as far as visible, elongated and poin- 

 ted below, widened above. Thu columellar lip is involute and the siphonal notch, 

 above, only just perceptible. H. 13 millim., br. 4 mill. Another specimen: h. 18 mill., 

 br. 4 mill. 



A dozen specimens have been found in the beds of the red and gray limestone 

 of the hills Sandarfve and Linde. 



