BROWN, RUGOSE CORALS 
81 
Figs. 1-4. Lophophyllum prolijerurn. X 8. 
1 shows a comparatively early stage when the individual ■might easily be 
mistaken for almost any one of the Streptelasma species previously described. 
The septa are arranged in the same way and are at a stage comparable with 
1 Johns Hopkins University Circular, Jan., 1902. Annals & Magazine of Natural History 
May, 1902. 
2 Studies on Early Stages in Paleozoic Corals. Am. Jour. Sci. Feb. 1906. 
success as was anticipated, and in the following discussion of this species 
his own sections are supplemented by a very good and complete series of 
sections copied from a paper by Duerden. 1 While the drawings are copied 
from Duerden, the writer alone is responsible for the interpretation of these 
drawings and in his interpretation differs widely from Duerden, but agrees 
with Gordon. 2 
In figures 1 to 4 are given four stages in the life of one individual. Figure 
