﻿Dec, 1895.] 



SOREX LONGIROSTRIS, 



85 



locality (Reyes, Oaxaca): Total length, 125 mm.; tail vertebrte., 56.6 

 mm. 5 hind foot, 14.8 mm. 



General remarks.— Sor ex saussurei caudatus is simply a long-tailed 

 form of saussurei, differing slightly in coloration. Its distribution is 

 compleraental to that of saussurei, as it inhabits mountain slopes of 

 southeastern Mexico, while typical saussurei occupies the mountains 

 of southwestern Mexico. On Mount Zempoaltepec it presents greater 

 range of variation than elsewhere. 



Specimens examined. — Total number, 41, from the following localities 

 in southern Mexico: 



Oaxaca: Reyes (type locality), 11; Totontepec, 5; Mount Zempoaltepec, 11; 

 Cerro San Felipe, 4, 

 Vera Cruz: Jico, 5; Mount Orizaba, 4; Las Vigas, 1. 



SOREX LONGIROSTRIS Bach. 

 (PL IX, figs. 6, 6a.) 



Sorex longirostris Bachman, Jour. Acad. Nat. Sci, Phila., Ill, Part. II, 370-373, PI. 

 XXIII, fig. 2, 1837. 



T7jpe locality. — Swamps of Santee River, South Carolina. 



Geographic distribution. — Austroriparian fauna of North and South 

 Carolina, and probably Georgia and Florida also. 



General characters. — Size small (hind foot, 11 mm. or less); tail 

 shorter than body without head; ears large and conspicuous; third 

 uuicuspid smaller than fourth, as in the west American Shrews. 



Color. — Uijper parts chestnut brown, changing rather abruptly to 

 color of under parts, which is ashy tinged with drab; upper side of tail 

 dark, under side pale brownish. 



Cranial and dental characters. — Skull smallest of the American spe- 

 cies except S. nanus J from (Colorado, with which it agrees in size and 

 many important characters. It differs from all the other species of the 

 genus in eastern America, and agrees with most of those from the 

 West, in having the third unicuspid decidedly smaller than the fourth. 

 Compared with S. nanus of Colorado, the whole cranium is higher; con- 

 striction broader and more swollen; palate broader and more arched; 

 anterior part of rostrum broader, shorter, and less attenuate. Molari- 

 form teeth small and moderately excavated posteriorly; unicuspids 

 broad and crowded; first and second subequal; third about half as 

 large as second and decidedly smaller than fourth; fifth relatively 

 large. 



Measurements. — Average of 6 specimens from Raleigh, N. C. : Total 

 length, 85.6 mm.; tail vertebme, 31.9 mm.; hind foot, 10.7 mm.^ 



General remarks. — So far as I am aware, the only specimens extant of 

 Bachman's Sorex longirostris are the half dozen collected at Raleigh, 

 N. C, by H. II. and C. S. Brimley. These specimens, I am informed, 



' For these measurements, taken in the flesh, I am indebted to H. H, and C. S. 

 Brimley, of Raleigh, N. C. 



