PLATE LVIII. 



no. 



1. Stomatopora majoKj p. 427; witli ooecium and triple 



division of tlie branch. See Plate LXI. 



2. , nat. size of the above. 



3. . 



3 a. , nat. size. 



4. , nat. size, from a finely ramified spceimen. 



