EXPLANATION OF PLATE XLV. 



Figs. 1-8. Ichthyodectes anaidcs, Cope : figs. 1-4 and G, one-half natural size ; figs. 5, 7, and 8, natural size; 



from one, the type-specimen (see Plate XLIV, fig. 14). 

 Fig. 1. Mandibular rami, lying on a hlock of yellow chalk. 



2. Premaxillary hone, outer side. 



3. Premaxillary bone, inner side. 



4. E'glit maxillary, outer side. 



5. Sclerotic bones of the same. 



C. Hyomaudibular, symplectic, and quadrate hones. 



7. Femoral bones, from below; 7 a, from behind. 



8. Pectoral spine. 



Figs. 9-11. Terminal caudal vertebra) of Porthcus molossus, from above; a, from frout; 1), from side. 



12. Jaw of Bryactinus amorjrtus, Cope (p. 282), natural size : a, profile ; h, masticating face ; c, oppo- 

 site border. From the greensaud of New Jersey. 



