i04 



COMPAEATIVE TABLE OF 



Name. 



U. magnijlora, Kulliker. 



U. lindahlii, KuUiker. 



U. eiicrinus, Linn. 



U. f/eniculala, Studer. 



Umhcllula cbmi, n. sp. 



U. intermedia, n. sp. 



U. rosea, n. sp. 



Stalk. 



Long swelling below, and 

 a liattened and cnrved 

 enlargement at its upper 

 end. 



Short, soniewliat .spirally- 

 twisted, and bent in a 

 large flat curve beluw 

 the polyp-clu.ster. 



Upper part of stalk is 

 twisted and bont in vari- 

 ous ways ; the whole 

 stalk above the terminal 

 .swelling is turned like 

 a spii-al round its longi- 

 tudinal axis. 



Long, thin, slightly bent 

 at the inferior end. 



Long, Uexibie, « 

 enlargement at 

 end. 



with an 

 lower 



Long, .slender, fle.\ible, 

 quadrangular in section ; 

 small enlargement at 

 the lja.se and another 

 spindle - shaped li igher 

 up. 



Long, flexil)le, quadrangu- 

 lar in section, marked 

 by a groove on each sur- 

 face ; two enlargements. 



Axis. 



Quadrangular, with con- 

 cave surfaces and 

 rounded edges. 



Eachis. 



No distinct rachi.s. 



Quadrangular, with rather Li form of a polyp-cluster, 

 deeply concave surfaces 

 and ridge-like projecting 

 edaes. 



Quadrangular, withdeeply An apparently radiate 

 concave surfaces and i hansiug cluster 

 rounded edfres. 



Quadrangular, 

 concave. 



surfaces 



Almost cylindrical. 



Quadrangular in section, 

 with a groove on each 

 side. 



Quadrilateral and deeply 

 grooved on the sides. 



Arises at a right angle. 

 Autozooids arranged in 

 a rosette — slightly bi- 

 lateral. 



Short, and forms an ir- 

 regular inverted cone 

 flattened laterally. 



Bilateral, ovoid, with a 

 ridge on the prorachi- 

 dial surface. 



Short, bilateral. 



