Fig. 1. 
Fig. 2. 
PLATE 7. 
405. 10. Buthotrephis talmata. 
a. A specimen where the branches separate at different distances from the base. 
b. Another specimen, apparently of the same species, showing successive branches from a 
Roots of Buthotrephis? 
(Pag. 20.) 
single stem. 
(Pag. 21.) 
