NO. 1101. 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



6T 



Dimensions of skulls of Scapanus californicus — Continued. 



Catalogue 

 uumber. 



Skull. Skin 



35128 19409 



Xat. Mus . .. 



3956 3291 1 Mcrriam.... 



61301 5443; (1.) 



311l' ! Nat. Mus ... 



48391 36047 Dept. Agric, 



30299 ! do 



30298 ! do 



30300>... 

 61374L.. 

 30406 . . . 

 30411 ... 

 30310 . . . 



do 



Nat. Mus . . . 

 Dept. Agric. 



do 



do 



2746! 2230 Merriain 



56533 Dept. Agric 



I I 

 66597; do 



41243| do 



409431 do , 



23967' I do 



11243 Nat. Mus.- 



3688614475! do 



*1286, Merriam 



Locality. 



Nicasio, Cal. 



do 



Berkeley, Cal 



San Francisco. Cal. 

 Pacific Grove, Cal . . 



Alhanibra, Cal 



do 



do 



do 



do 



do 



San Gabriel, Cal . . 



San Bernardino, Cal 

 San Bernardino 



Peak, Cal. 

 Tebacliapi Peak, 



Cal. 

 Owens Lake, Cal . . . 



do 



Bijnu. Cal 



Fort Crook, Cal.... 



Baird, Cal 



Fort Klamath, Oreg 



mm 

 37.0 



35.0 

 36.3 

 32.7 

 33.6 

 30.0 

 31.8 



30.3 

 32.0 

 30 8 

 31.7 

 32.0 



30.6 

 32.3 



31.6 

 31.0 



33.8 

 34.4 



m,m,. mm. 

 29. 6i 16.0 



I 

 29.0 15.0 

 31.8 15.6 

 27.0 14.0 

 15.(1 

 14.2 

 14.2 



27.0 



■mm. m-in. 

 17.4 14.0 



mm. 

 10.6 



17.0 14.0 10.4 

 17.6 14.7! 10.8 

 16.5 13.7 10.0 



16.1 13.4 9.5 

 16.0, 13 0.4 



16.2 13.6 9.8 



— cs 



inm. 

 5.3 



5.4 

 5.4' 



25.4 13.3! 15.2 



26.7 14. 0| 16.0 



25.2 13.4 15.7 



26.7 14.2 15.8 



26.1 13.4 15.3 



25.0 

 26.8 



13.0 

 14.0 



27.3 14.4 



25.6 13.7 

 13.4 

 15.0 



24.4 

 '27.' 5 



"28.'4 



15.4 

 15.0 



15.7 

 J.6.Z 



12.6 

 13. o! 

 13.0 

 12.9 

 13.0 



13.0 

 13.5 



9.2 



9.o! 



9.3 

 9.1 

 9.0 



15. 8| 13.2 

 15.4 12.5 



ie.'gju.'o 



16. 9| 



17.0: 14.0 



Adult, or 

 less. 

 Do. 

 Do. 

 5.0 Adult. 

 5.3 Youngisb. 

 5.0 Adult. 



5.0 Adult, or 

 j less. 



4. 8 Do. 



5. 2 Do. 



5. Oj Toungi.sli. 



5. 1 Do. 

 4.8| Adult, or 



I less. 

 4.8! Do. 



Adult, or 

 less. 



Do. 

 Youngish. 

 (Broken.) 

 Youngish. 



Do. 

 Adult. 



' Type of ,S. dilatvs. 



Dimensions of type skull of Svapanus anthonyi. 



Amer. Mus 



San Pedro Martir 

 Mountains, Low- 

 er Calit'ornia. 



m,in. 

 30.0 



■)>im. 

 24.7 



rnrn.. m,m. 

 13.5 15.7 



m,')n. 

 12.8 



m,m. 

 8.8 



mm. 

 4.6| Adult. 



Genus PARASCALOPS, True. 



Parascalops, True, Proc. U. S. Nat. Mus., XYII, 1894, p. 242. 

 hreiveri, Bachmau.) 



(Type: ScidojjS 



Body fusiform. Head couical. Xostrils lateral. Fore feet very 

 broad, talpoid. Tail thick and Lairy. Eyes minute. Auricular orifice 

 large. Skull depressed ; tympanic bullae annular. Molars witli a broad, 

 trilobed internal basal lobe. Pelvis witli no osseous bridges connecting 

 the sacrum with the ischium. 



Dental formula : i. 



pm, {; m, I ; total, 44. 



From a detailed comparison of the skeletons of Sealo2)s aqnaticus^ 

 Scapanns townse)i(li, and ^ScaiJamis hreiveri (or amcricanus) I arrived at 

 the conclusion that the last two can not properly be included in the 

 same genus, and that Townsend's mole really has a much closer afiinity 



