1915.] 



SCALOPUS AQUATICUS INTERMEDIUS. 



49 



though in extreme old age it tends to become angular and the brain- 

 case flattens. 



Measurements, — ^Average of 3 males from type locality: Total 

 length, 159 (157-160); tail vertebrae, 32 (31.5-32.5); hind foot, 21.1 

 (20.3-22). Slcull: Average of 3 skulls of males from type locality: 

 Greatest length, 34.2 (33.1-34.8); palatilar length, 14.2 (14.1-14.4); 

 mastoidal breadth, 17.8 (17-18.4); interorbital breadth, 8.1 (7.7-8.4); 

 maxillary tooth row, 11.2 (11.1-11.3); mandibular molar-premolar 

 row, 10.9 (10.8-11). 



Remarks. — ^This subspecies can be distinguished from aU other 

 moles by its pale color and lack of ochraceous suffusions. Its nearest 

 relationships are with intermedins with which it probably intergrades 

 in southern Kansas. 



Specimens examined. — Total number 16, as foUows: 



Colorado: Wray, 1. 

 Kansas: Long Island, 3.^ 



Nebraska: Kennedy, 1; Neligh (type locality), 4; Long Pine, 2;^ Niobrara 

 River, 1;^ Sandhills," 1; Warbonnet Canyon, Sioux County, 3.^ 



SCALOPUS AQUATICUS INTERMEDIUS (Elliot). 



Southern Plains Mole. 



Scalops machrinus intermedius Elliot, Field Columb. Mus., publ. 37, zool. series, 

 vol. 1, p. 280, 1899. 



[Scalops] [aquaticus] intermedius Elliot, Field Columb. Mus. publ. 45, zool. series, 

 vol. 2, p. 390, 1901. 



Scalopus aquaticus intermedium Bailey, N. Am. Fauna No. 25, p. 207, October 24, 1905. 



Type locality. — ^Alva, Woods County, Oklahoma. 



Type specimen. — No. 6832, Field Mus. Nat. Hist.; adult, skin 

 and skull; collected February 23, 1899, by Thaddeus Surber.'^ 



Geographic range. — Central and western Oklahoma and adjacent 

 parts of northern Texas. 



General cliaracters. — Size medium; tail relatively long; color pale 

 with ochraceous on nose and wrists, darker and more ochraceous 

 than caryi; skull relatively short, high and heavy, but not angular; 

 rostrum short; teeth large. 



Color. — Winter pelage: Back light drab to drab tinged with buff- 

 pink; nose and wrists ochraceous-buff to zinc orange; underparts 



1 Collection Amer. Mus. Nat. Hist. 



2 Collection Stanford Univ. 



» Collection Univ. Nebraska. 



< Mr. C. B. Cory, in a letter dated March 20, 1914, advises the writer that the specimen labeled as the 

 type of Scalops machrinus intermedius Elliot is No. 6829, Field Mus. Nat. Hist., collected at Alva, Okla., 

 December 8, 1899, by Thaddeus Surber. In the origmal description Elliot designates no type specimen 

 by number, but describes an adult male collected at Alva, Okla., February 23, 1899, by Thaddeus Surber. 

 Since No. 6832, Field Mus. Nat. Hist, is the only specimen of the original series to which this description 

 can apply, it is necessary to consider it the type of intermedius. 



90549°— 15 4 



