EXPLANATION OF PLATE IL 



Fig. la, b. Two forms of Monticulipora turbinata, U. P. 

 James, Natural size. 

 \c. Surface magnified* p. i6i 



Fig. 2a. Upper surface of M. eccentrica, U. P. James. En- 

 larged three times. 



2b. Under surface, also enlarged three times, showing 

 the eccentric lines of the epitheca. 

 2c. Surface magnified as in fig. i p. 167 



Fig. la. Small specimen of M. tvorthcni, U. P. James, 

 Natural size. 

 lb. Surface magnified as in fig. i p, 184 



Fig. 4«. M. varians, U. P. James, natural size. 



Ofb. Surface magnified p. 177 



Fig. 5<7, b. M. communis, U. P. James, natural size. 2 

 specimens. 



Fig. 5^. Surface enlarged p. 175 



Fig. 6^, b, c. M. kenhukensis, U. P. James, natural size.. 

 3 specimens. 

 6//. Surface of 6 <r. enlarged p. 180 



* The drawings showing magnified surface features were made with a No. i 

 eyepiece and a 2 inch obiective, in connection with the Camera-Lucida. 



