PLATE % 
Fig. 1. 
382. 1 . Arthrophycus harlaisi. 
(Pag. 5.) 
1 a. A fragment, showing the base of a large stem which diverges into numerous branches. 
1 b. A similar fragment, showing a second bifurcation above the first. 
Specimens like the above are of rare occurrence. 
1 c. A fragment of a branch somewhat spirally twisted and flattened. This specimen gives evidence that the 
plant grew in an erect or a suberect position, and that the pressure from above caused it to assume its 
present form. The fragment shows also two broken stems with bifurcating branches. 
Fig. 2. 
383. 2. Arthrophycus-? 
(Pag. 6.) 
Fig. 3. 
384. 2. Scolithus verticalis. 
(Pag. 6.) 
