48 Merriam Two ^New Wood Hats. 



having the f rentals expanded posteriorly, forming supraorbital shelves; 

 anterior root of zygoma more slender, with smaller antorbital notches; 

 bullge decidedly smaller and less inflated anteriorly. 



Measurements. Type ( 9 ): Total length, 350; tail vertebrae, 164; hind 

 foot, 34. Adult male from same place: total length, 330; tail vertebrae, 

 152; hind foot, 36. 



Skull of type. Basal length, 37; zygomatic breadth, 21.5; palatal 

 length, 21.5; diastema, 12; upper molar series on alveolus, 8.5. 



Neotoma goldmani, sp nov. 



Type from Saltillo, Coahuila, Mexico. No. 116,894, $ yg. ad., U. S. 

 National Museum, Biological Survey Collection. April 18, 1902. E. W. 

 Nelson and E. A. Goldman. Original No. 15,101. 



Characters. Size small; tail rather short, sharply bicolor; ears rather 

 large; color grayish, becoming buffy ochraceous on flanks. Skull small, 

 similar in general to that of desertorum but much smaller, with strik 

 ingly smaller bullae; anterior lobe of first upper molar single and with 

 out anterior notch. 



Color. Upperparts buffy grayish, becoming buffy ochraceous on 

 flanks; back well sprinkled with black tipped hairs, most abundant on 

 posterior half; head and face gray, washed with buffy ochraceous on 

 cheeks; underparts and feet white; tail above dark brown (nearly black 

 in fresh pelage); below white or nearly white. 



Cranial characters. Skull small, light, and smoothly rounded, even 

 in old age; frontalsflat interorbitally, broad anteriorly and not expanded 

 posteriorly (much as in mexicana but relatively broader and flatter); 

 nasals narrowly wedgeshape, truncate behind; premaxillaa reaching far 

 beyond nasals and somewhat expanded posteriorly; interparietal subtri- 

 angular, long transversely, strongly convex anteriorly. 



Remarks. Neotoma goldmani is a very small species with a peculiar 

 combination of cranial and dental characters. It does not require close 

 comparison with any known species. 



Measurements. Average of four from type locality: total length, 279; 

 tail vertebrae, 128; hind foot, 30. 



Skull of an adult male from type locality: basal length, 33; zygomatic 

 breadth, 19; palatal length, 18.2; diastema, 11; interorbital breadthj 5.5; 

 upper molar series, 7. 



