294 bulletin: museum of comparative zoology. 



The division received its name from Lyckholm, the home of Baron 

 Rosen, which is situated on the long Nucko peninsula, opposite the 

 city of Hapsal. The type-exposure, and apparently the only one in 

 the vicinity, lies about one eighth of a mile north of the dwelling. 

 Formerly it was quite extensive, but at present little is shown and the 

 old dump heaps have been picked over so frequently, that, without 

 further quarrying, it is now impossible to obtain a representative col- 

 lection. The rock consists of gray and white to yellowish white, 

 rather thick-bedded, partially crystalline limestone, the individual 

 beds being separated by thin shale partings. Not more than five or 

 six feet are, or were exposed. It appears very probable that these 

 beds belong to the lower division of the formation. 



Several small exposures have recently been developed at Hohen- 

 holm on the Island of Dago and from five to six feet of strata have 

 been exposed, consisting of blue and gray limestone with thin shale 

 partings. The bedding is not well defined. The Kegel appears to 

 lie about five or six feet below the surface, and it seems to be visible 

 at the water's edge a short distance north, and just back of the factory 

 at Hohenholm, a ditch reaches a limestone of Kegel aspect, and so 

 Dr. Raymond considers it. Schmidt reports the occurrence of the 

 Wesenberg limestone on the shore by the village of Rootsi, only a short 

 distance east ^ but what he saw was probably the Kegel. The older 

 Hohenholm exposures could not be found. These beds contain 

 essentially the same fauna as those at Lyckholm; Halysiies catenv- 

 laria, the typical Poramhonitcs gigas, and Triplecia insularis, in addi- 

 tion to other fossils, having been collected. 



At Paope, about four miles southwest of Hohenholm, is a quarry of 

 considerable size which during the summer of 1914 was being worked. 

 Not over six or seven feet of rock are exposed, consisting of soft impure 

 bluish gray limestone of semicrystalline texture with beds of blue shale 

 separating the limestones. The beds of this quarry probably lie a 

 little above those of the Hohenholm exposures, as the locality is south 

 of that place and the quarry is situated on a little higher ground. The 

 fauna is the same as that of Lyckholm and Hohenholm and the lith- 

 ology is also quite similar. Fossils are very abundant. 



Kertel is the name of a village on the northern side of Dago and 

 the quarries are located about a mile south of the village, near Pallo- 

 kiill Krug (Plate 2, fig. 1).^ About six feet of somewhat heavy- 



1 Schmidt. Loc. cit., 1858, p. 136. 



- A krug is a place where lodging and food may be obtained. 



