Protethmos bartolomaei 
Bedescription of the original of pi. xix, fig. l(type specimen ) : 
Corallum cornute, somewhat curved in plane of shorter 
diameter, "base rather pointed, calice oblique to vertical axis, 
its outline almost circular. Greater diameter of calice, 20 * 5 
mm.; lesser diameter, net quite so much; height of corallum to 
upper edge of 1 calice, 33.5 mm., to lower edge of calice, IS mm. 
(this side of the calice seems to have been broken, therefore 
the difference in height of its two sides is considerably less 
than these numbers indicate). 
Wall with encircling constrictions and swe 1 lings ; apparent- 
ly solid throughout , certainly solid in its basal portion, 
there are occasional pits, suggesting that perforations may exist 
near the upper edge. Epitheca absent. Costae correspond to 
all septa, they are granulated, acute or rounded on the edges, 
their bases near together with narrow intercostal furrows. On 
the lower part of the corallum alternately larger and smaller, 
on the upper portion equal 
