﻿PLATE IX. 



[Enlarged about seven times.] 



Fig. 1. Sorex richardsoni. Edmonton, Alberta, Canada. 

 (No. 69156, U. S. Nat. Mus.) 



1. Upper jaw with teeth (profile), 

 la. Crowns of upper series of teeth. 



2. Sorex fiimeus. Lake George, New York. 



(No. 55945, ^ , U. S. Nat. Mus.) 



2. Upper jaw with teeth (profile). 

 2a. Crowns of upper series of teeth. 



3. Sorex pribilofensis. St. Paul Island, Pribilof Islands, Bering Sea. 



(No. 74657, U. S. Nat. Mus.) 



3. Upper jaw with teeth (profile). 

 3a. Crowns of upper series of teeth. 



4. Sorex merriaml. Fort Custer, Mont. Type. 



(No. 4861, 9, Merriam collection.) 



4. Upper jaw with teeth (profile). 

 4a. Crowns of upper series of teeth. 



5. Microsorex lioiji. Devils Lake, N. Dak. 



(No. 4353, Merriam collection.) 



5. Upper jaw (profile). 



5a. Crowns of upper series of teeth. 

 5&. Lower jaw (profile). 



5c. Second and third unicuspids greatly enlarged. 



6. Sorex longirostris. Raleigh, N. C. 



(No. 4635, 9, Merriam collection.) 



6. Upper jaw with teeth (profile). 

 6a. Crowns of upper series of teeth. 



7. Sorex person atus. Montauk Point, New York. 



(No. 56588, U.S. Nat. Mus.) 



7. Upper jaw with teeth (profile), 

 7a. Crowns of upper series of teeth. 



8. Sorex dohsoni, Altiiras Lake, Idaho, Type. 



(No. 31678, U. S.Nat. Mus.) 



8. Upper jaw with teeth. 



Ba, Crowns of upper series of teeth. 

 NOTS.— 18 this specimen the third unietispid h abuornmliy 



lis 



