Pa AVI exe Velie 
MEDUSINA PRINCEPS (p. 54). 
Fic. 1. Copy of Linnarsson’s second figure of Medusina radiata, which Nathorst identified as the 
species described by Torell. 
MEDUSINA RADIATA (p. 46). 
Fia. 2. Copy of Linnarsson’s original figure. Dr. Nathorst considers this to bea cast of the radial 
canals of a craspedote medusa belonging to the family Alquoride. 
MEDUSINA COSTATA (p. 4). 
Fic. 3. Side view of a quadripartite specimen showing the radiating ridges and casts of the 
genital hollows (g, g). (Collection United States National Museum. ) 
Fic. 3a. Summit view of fig. 3, showing 4 lobes expanding to hollows in the roof of the gastric 
cavity; also the casts of the genital hollows (g, g). (Collection United States National 
Museum. ) 
Fic. 3b. View of the lower side of fig. 3, showing cast of the 4 radiating ridges and the genital 
hollows (g. g). (Collection United States National Museum. ) 
Fic. 4. View of the under side of a quadripartite specimen. (Collection United States National 
Museum. ) 
DACTYLOIDITES ASTEROIDES (p. 41). 
Fig. 5. A specimen flattened in the slate. The exumbrella lobes appear to have been pressed out 
over the subumbrella lobes, the latter appearing as the dark portions of the fossil. 
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