62 



J. E. Hede 



The interior of the cheeks only slightly convex. The eyes which have big facets, 

 occupy the distance between the first and the third lateral furrow. 



The anterior branch of the facial suture, at first directed a little outwards, follows 

 on the whole the axial furrow. The posterior branch, at first curving obliquely for- 

 wards and outwards, then turning backwards, at last cuts the outer margin under 

 a very acute (resp. obtuse) angle. 



Hypostome, about as long as wide, transversely slightly convex. Anterior 

 margin nearly straight, posterior somewhat parabolic. Posteriorly the central part 

 is bounded by a shallow furrow, at the ends of which the maculas are placed. 

 They are directed obliquely forwards and outwards. 



The thoracic axis, limited by strong furrows, is about one third the width of 

 the segment, and has a nearly semicircular section. The pleurae, in the outer 

 half strongly curved downwards, are furnished with strong oblique grooves. Pleuras 

 ending in points slightly bent up. 



The whole surface of the thorax is covered with a fine and close granulation ; 

 besides, the posterior part of each ring shows well developed tubercles. 



Pygidium nearly semicircular, with the posterior border evenly rounded. Length: 

 breadth = 3: 5. Axis, conical, rather convex, with deep axial furrows, occupies 4 /s 

 of the total length and a /io of the anterior margin. Disregarding the anterior half- 

 ring, the axis has 8 distinct rings, separated by deep and broad furrows. The sides 

 are convex and have 7 segments, all with a well marked oblique median furrow, 

 desisting inside the flat limb. The posterior portion of a foregoing segment is some- 

 what elevated above the anterior portion of the following. 



Axis and sides provided with tubercles, which on the rings as well as on the 

 lateral lobes arc almost arranged as in a string of pearls. The granulation, quite 

 missing in the furrows, is more marked on the posterior than on the anterior por- 

 tion of each segment. 



Locality a. 



Dalmanites simricus n. sp. 



Pl. IV, fig. 9 and 10. 



Only tails are known, all from locality a. They are parabolic, moderately con- 

 vex ; their length is to the width as 2:3. The axis is strongly narrowing backwards 

 and ending in a sharp point near the margin. Besides the anterior little surface 

 for articulation and the posterior triangular point, it has 10 rings separated by deep 

 furrows, which on the anterior segments are broadest over the middle. At the 

 axial furrow, the ring is a little flattened and sometimes slightly concave. The 

 side lobes have 8 distinct segments separated by rather deep and narrow furrows. 

 On the anterior part of the tail these furrows are at their start directed straight at 

 the sides and only near the margin bending backwards; in the posterior part of the 

 tail they seem to be gradually more and more directed backwards. All the furrows 



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