8 



INTRODUCTION 



LIST OF NEW GENERA AND SPECIES 

 (The new genera are indicated by Italics) 



INVERTEBRATES 



? Callocardia kincaidii Ball. 

 Crepidula precursor Dall. 

 Crepidula ungana Dall. 

 Dosinia ? alaskana Dall. 

 Inoceramya concentrica Ulrich. 

 Macrocallista gilbert! Dall. 

 Margarites peninsularis Dall. 

 Mesodesma alaskensis Dall. 

 Modiolus alaskanus Dall. 

 Modiolus harrimani Dall 



^Esculus arctica Knowlton. 

 Arthrodendron diffusum Ulrich. 

 Cancellophycus rhombicum Ulrich. 

 Corylus harrimani Knowlton. 

 Corylus ? palachei Knowlton. 

 Gilbertina spiralis Ulrich. 

 Gyrodendron emersoni Ulrich. 

 Helminthoida abnormis Ulrich. 

 Helminthoida exacta Ulrich. 



Papyridea harrimani Dall. 

 Protothaca grewingkii Dall. 

 Saxtdomus popofianus Dall. 

 Spisula callistiformis Dall. 

 Terebellina palachei Ulrich. 

 Trochita alaskana Dall. 

 Yoldia breweri Dall. 

 Yoldia emersoni Dall. 

 Yoldia palachei Dall. 



PLANTS 



Helminthoida vaga Ulrich. 

 Hicoria magnifica Knowlton. 

 Myelophycus curvatum Ulrich. 

 Phjllites saundersi Knowlton. 

 Picea harrimani Knowlton. 

 Pterospermites alaskana Knowlton. 

 Pterospermites magnifolia Knowlton. 

 Retiphycus hexagonale Ulrich. 

 Vaccinium alaskanum Knowlton. 



Helminthoida subcrassa Ulrich. 



All specimens of rocks and fossils either have been, or 

 are to be, deposited for permanent preservation in the 

 National Museum at Washington. 



