PLATE 3. 
Pig. 1 - 4. 
MARIACRINUS PACHYDACTYLUS. 
Page 
107 
1. An individual preserving the body and greater portion of the arms, with several inches of the 
column. 
2. The body and lower part of the arms, showing the surface characters in a good degree of pre¬ 
servation. 
3. A specimen with arms, armlets, and tentacula nearly entire. 
4. Diagram illustrating the structure of the body and one arm to the second bifurcation of the 
brachial plates. 
4 a. Enlargement of a portion of an arm, showing the arrangement of plates and origin of armlets. 
Fig. 5. Mariacrinus paucidactylus. 109 
5. A specimen preserving the body above the basal plates, and a portion of several of the 
arms and armlets. 
Mariacrinus plumosus. 
110 
Fig. 6-11. 
6. A small individual preserving the body and arms nearly entire, with a small portion of the column. 
7. A larger individual. 
8. Enlargement of the body of fig. G. 
9. Enlargement of the arm-joints and tentacula. 
10. A similar enlargement from another specimen. 
11. Diagram showing the structure of the body and arrangement of the brachial plates. 
