﻿Dec, 1895.] 



BLARINA PARVA. 



17 



KEY TO SPECIES AI^D SUBSPECIES. 



Size very large (total length about 130 mm. ; hind foot, 17 mm.) magna 



Size medium or small (length 108 mm. or less) : 



1. Size medium (length, about 100 to 108 mm. ; hind foot, 13 to 15 mm.) : 

 2. Large upper premolar deeply excavated posteriorly — 



Large upper premolar ^vith antero- internal angle well devel- 

 oped alticola 



Large upper premolar with antero-internal angle broadly 



rounded off fossor 



2.' Large upper premolar not deeply excavated posteriorly — 

 3. Total length, 106 mm. or more: 



Hind foot about 15 mm machetes 



Hind foot about 13 mm nelsoni 



3.1 Total length, about 100 mm. : 



4. Unicuspidate teeth with strongly developed cusplet 

 on inner side : 

 Brain case abruptly inflated above plane of ros- 



trum mexicana 



Brain case only slightly elevated above plane of 



rostrum goldmani 



4.1 Unicuspidate teeth with inner cusplet feebly devel- 

 oped peregrina 



1.1 Size small (length less than 93 mm. ; hind foot, 13 mm. or less). 



Size smallest; tail about 16 mm. ; hind foot, about 10.5 nmi parva 



Size larger; tail 19 mm. or longer; hind foot, 12 to 13 mm. : 

 Color sooty plumbeous; tail, about 25 mm. — 



Large upper premolar deeply excavated behind soricina 



Large upper premolar not deeply excavated behind ohscura 



Color ash gray or brown — 



Total length, about 93 mm. ; tail, about 25 mm iropicalis 



Total length, less than 90 mm. ; tail, 22 mm. or less — 



Color iron gray to sepia brown floridana 



Color chestnut brown to ash brown hei-Jandie^'i 



BLARINA PARVA (Say). Small Blarina. 

 PI. 1, figs. 5, 6; pi. 3, figs. 2, 6, 13. 



1823. Sorex parvus Say, in Long's Expedition to the Rocky Mountains, I, 1823, 164. 



(From near Blair, Xebr.) 

 1837, Sorex cintreus Bachman, Jour. Acad. Nat. Sci. Phila., VII, Part II, 1837, 373- 



376, PI. XXIII, fig. 3. (From Goose Creek, 22 miles from Charleston, S. C.) 

 1857. Blarina exilipes Baird, Mammals N. Am., 1857, 51-53. (From Washington, Miss.) 



1857. Blarina cximius Baird, Ibid, p. 52 (provisional name based on specimens from 



St. Louis, Mo. and Dekalb Co., Illinois.) 



1858. Kennicott, Quadrupeds of Illinois, Report Commissioner of Agriculture for 



1857, 1858, p. 97. 



Type locality. — West bank of Missouri, near Blair, i^'ebr. (formerly 

 Engineer Cantonment, 3 miles above mouth of Boyer lUver). 



Geographic range. — Austral region of the eastern United States 

 (including both the Austroriparian and Carolinian faunas) from Texas 

 and eastern Nebraska eastward to the Atlantic, Not known from New 

 York or New England. 

 4110— No. 10 2 



