346 NEW YORK STATE MUSEUM 



Note on Tornoceras cinctum Keyserling 

 Goniatites cinctus Keyserling, Verhandl. d. kais. russ. mineral. Gesellsch. 



T844. p. 227, pi. A, fig. 2, 3 

 Goniatites cinctus Keyserling, Reise in das Petschora- 



land. 1846. p. 277, pi. 12, fig. 2, 3 

 Tornoceras cinctum Holzapfel, Das obere Mitteldev. 



im rhein. Gebirge. 1897. p. 90, pi. 6, fig. 12; pi. 7, fig. 4; 



pi. 8, fig. 8 

 Tornoceras cinctum Holzapfel, Memoires du Comite 



geologique. 1899. p. 16, pi. 9, fig. 2-6 



Hall described Torn, bicostatum in 1843 

 Fig.16 Tornoceras bi- [Rep't Fourth Dist. p. 245.] Thisspecies and Torn. 



costatum, somewhat . ...... . 



enlarged. correii-spoint. cinctum are apparently identical in mature characters, 

 though their ontogeny may prove them to hold succes- 

 sive rather than coequal relations. The adjoining figure is given to 

 express the aspect of Torn, bicostatum when uncompressed. 



Melocrinus clarkei (Hall) Williams 



Original description. 1 The shape of the calyx can not be determined 

 on account of the crushed condition of the specimens, but the shape and 

 number of the plates agree so well with those of M. bainbridgensis 

 H. & \\\, that it is probable that the shape was the same, i. e. broadly 

 turbinate. In size, also, the calyx agrees well with that species. 



No underbasals appear. 



The basals are low, wide and pentagonal. 



The radials are more than double the size of the basals, in hight and 

 width equal, or wider than high. The variation in the shape of this plate, 

 in the several specimens on the one slab, covers the extremes met with in 

 the two species, M. bainbridgensis and M. breviradiatus. 



The radial is followed by two brachials of smaller size, the first hex- 

 agonal, the second pentagonal and angular above, and each is about equal in 

 hight and width. 



The second brachial supports two arm plates (still within the calyx), 

 nearly as large as the brachials, irregularly pentagonal and meeting at their 

 inner edges. 



Of the secondary radials, three are withinthe calyx, the second is about 

 half as high as wide, the third is very short. The third pair of secondary 



■H. S. Williams. Acad. Nat. Sci. Phil. Proc. 1882. p. 31. 



