216 NEW YORK STATE MUSEUM 



PLATE 6 



(All originals in state museum) 



Bollia cornucopiae sp. nov. 



p. 82 



Pig. 



1 Only valve found, x 22 



2 Posterior view of same, x 22 

 Pebble of group 7 



Macronotella fragaria sp. nov. 



p. 85 



3-5 Lateral, ventral and posterior views of a right valve, x 18 

 Pebble of group 7 



Macronotella ulrichi sp. nov. 



(See pi. 7, fig. 1) 

 p. 83 



6-8 Three views of a coarsely pitted right valve with faintly indi- 

 cated border, x 22 

 9 Lateral view of a right valve with distinct border and subcen- 

 tral muscle impression, x 22 



10-12 Lateral, ventral and anterior views of the largest valve 

 observed, x 22 



13-15 Lateral, ventral and anterior views of a right valve which 

 shows all the characters of the species well developed, x 22 



16 A more convex valve with less distinct pitting, x 22 

 Pebbles of group 7 



