PLA WE ee Vell: 
HOLONEMA RUGOSA, Claypole (sp.). (p. 93). 
Fig. 1. Lateral plate of plastron ?, natural size. 
2. Central plate of plastron ?, half natural size. 
3. Portion of central plate of carapace ?, natural size. 
4. Portion of lateral plate of carapace ? , natural size. 
All from Chemung group of southwestern New York and northwestern Pennsylvania. 
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