TAB. XL VI. 

 CORALS FROM THE MOUNTAIN LIMESTONE. 



Syringopora reticulata (p. 162). 



Fig. 1 . A portion of a tuft ; natural size. 



la. A horizontal section of a specimen, in which the mural interspaces were filled 

 up with extraneous matter. 



Syringopora geniculata (p. 163). 



Fig. 2. Side view of a broken tuft ; natural size. 

 2a. Upper view of the same ; natural size. 



Syringopora ramulosa (p. 161). 



Fig. 3. Lateral view of the upper part of some Corallites embedded within extraneous 

 matter; natural size. 

 3s. A horizontal section, magnified. 

 3d. A vertical section, magnified. 

 3?. Lower part of some broken Corallites. 

 4. A Corallum, supposed to be a small variety of Syringopora geniculata. 



Pyrgia Labechii (p. 166). 



Fig. 5. Lateral view ; natural size. 

 5a. Lateral view, magnified. 



