1895.] 



MR. F. A. BATHEB OK UINTACRINUS. 



981 



Fig. 4. 



Uintwyrinus socialis, Brit. Mus. E 6328, y. In this, as in figs. .5-12. the plates 

 of the apical and radial systoras are left white, the fixed distichals heing 

 numbered, and the supplementary plates are shaded as follows : —inter- 

 brachials, from right to left ; interdistichals, from left to right ; interpin- 

 nulars, vertically. An arm-fragment of another individual lies athwart 

 the upper part of the portion drawn. Natural size. 



Fig. 5. 



Uinfaorimts socialis, Brit. Mus. E 6o27, e. A cup seen from below, ^ 



shaded as in fig. 4. Natural size. 



