Wachsmuth and Springer—Paleocrinoidea. 8771 
Upon this peculiar organization, mainly, which Volborth took 
to be either a madreporic body or a genital organ, the genus 
erocrinus was established. 
In 1867, Grewingk brought forth an amended description of 
Berocrinus. He had succeeded in cleaning the Erras speci- 
. bearing. ; 
a Bag (fig. 2d) showing the outline of the body as it appears 
a 
Cipal generic characters of Bwrocrinu 
8. 
Schmidt, who wrote in 1876, considered the Erras «iia 
y upentas. 
with others in which ‘all five radials were developed, and he ~ 
took the former to be an important link between the five-armed 
