EXPLANATIONS OF PLATE XIV. 
RETIOLITES ENSIFORMIS, page 114. 
Figs. 1, 2, 3. Individuals showing gradations in growth, and slight differences in their 
proportions. 
4. A nearly entire stipe of the largest size observed. 
5. An enlargement from the specimen fig. 2. 
a 
“ce 
RETIOGRAPTUS TENTACULATUS, page 116. 
Fig. 6. An individual of the natural size, with the marginal reticulations nearly entire. 
“ 7, The preceding specimen enlarged. 
8. An enlargement of another individual, where the marginal reticulations are 
but partially preserved. 
ce 
RETIOGRAPTUS EUCHARIS, page 146. 
Fig. 9. An illustration of a compound form of the genus, enlarged to four diameters. 
