174 F. A. BATHER, CRINOIDEA OF GOTLAND. 



BB, 5; hexagonal, except post. B which is heptagonal. They vary slightly in size, 

 but the measurements are somewhat as follows: height 3 mm.; width below 1.75 mm. to 



2 mm.; width above 2 mm. 



R.R ö; very variable in size, but all small as compared with BB. Some are so broken 

 that the measurements cannot be given; the following are the measurements for the 1. and 

 r. ant. RR, respectively : Height to bottom of facet, 2 mm. and 1.75 mm.; width below, 



3 mrn. and 3 mm.; width above, 3 mm. and 3 mm.; width of facet, l.i mm. and 1 mm. 

 The facet is gently concave, shows no trace of ridge or depressions, and has a wide notch, 

 with no separate axial canal. The 1. post. R appears to have been abnormal (fig. 400). 



Arms: some fragments of what appear to be brachials are attached to the 1. ant. R. 



Anal structures: none preserved; but, to judge from the shapes of the adjacent 

 plates, the anal area of the cup seems to have been normal. 



Tegmen: a few interambulacrals are preserved, but nothing more can be made ont. 



Stem: the single columnal is very low, somewhat irregular in shape and has a 

 small axial canal. 



* 



This specimen is of interest as presenting a strong resemblance to the specimens of 

 Palceocrinus from Canada, and to certain species of Dendrocrinus. In this connection it 

 should be noted that it comes from a lower horizon than the other Gotland Gissocrini. 



This specimen was not figured by Angelin. 



Locality: near Djupvik in Eksta: bed c. 



