Xmi UST OF ILLUSTBATIONS 



Pae« 



6. Apophyllite. Habit of minute crystals which rest on datolite 28 



7. Calcite. Habit of small yellowish to amber crystals 28 



8. Calcite. Habit of larger colorless crystals __ 30 



A NEW GENUS OF EoCENE FOKAMINIFERA 



By Joseph A, Cushman 



1. Hantkenina alabamensis, new species. Apertural view showing the 



median aperture and the alar projections from it toward the base.. 3 



A FURTHER AND DETAILED DESCRIPTION OF THE TYPE OF ElEPHAS ROOSE- 



VELTi Hay and descriptions of three referred specimens 



By Oliver P. Hay 



1. Tooth and part of the skull referred by Osborn to Elephas primige- 



niusX. 25 4 



On remains of mastodons found in Texas, Anancus brazosius and 

 Gomphotherium cimarronis 



By Oliver P. Hay 



1-3. Gomphotherium cimarronisy^5. Diagrams to show position of the 

 fangs of the roots. Viewed with crown directed downward. The 

 numerals indicate the crests supported. 1. Upper right second 

 molar. 2. Upper right third molar. 3. Lower left third molar. _ 9 



4. Gomphotherium cimarronis. View of base of upper right tusk, seen 

 from outside. m,x., fragment of maxilla, pmx., fragment of pre- 

 maxilla. X .5 -^ ._ 11 



5-7. Gomphotherium, cimarronis. 5. Cross section of tusk of Figure 4, 

 where it emerges from the skull. Seen looking toward the skull. 

 Enamel band black. X .75. 6. Cross section of tusk 150 mm. 

 above distal extremity. Seen looking toward skull. X .6. 

 a, Enamel band; h, upper surface; c, lower surface. 7. Cross sec- 

 tion of tusk taken 100 mm. above distal end. Seen looking toward 

 skull. X .6. a, b, c, as in Figure 6 11 



8-9. Gomphotherium cimarronis. 8. Cross section of an upper tusk taken 

 a short distance below the proximal end. The black center rep- 

 resents the pulp cavity; the black band, the enamel. X .6. 

 9. Cross section of distal end of lower jaw, showing right and 

 left rami and the right tusk. X .57..- ^ 12 



o 



