PLATE 6 



Dalmanites (Probolium) biardi nov. 



Page 129 



1 A small head showing the general proportions and the marginal 



undulations, the snout being lost 



2 Portion of a smaller head with surface markings, x 3 



3 Cast of doublure showing the trifid snout with projections on the sides 



4 An enlargement of the snout, x 2 



5-7, 9, 10 Pygidia showing the character of the ribs, duplicate on the 

 exterior, simple on the cast, and the form and size of the tail spine 



8 A rather large cephalon, mostly excoriated and with the central branch 

 of the snout broken off 



1 1 The cephalic doublure 



12 A cephalon retaining the snout and showing the marginal crenulations 



Grande Grhve limestone. Perce Rock 



264 



