BLARINA. 561 



second upper molar with postero-internal lobe larger than antero- 

 internal. 



Color. Above sooty black; beneath paler. 



Measurements. Total length, 106; tail vertebrae, 31 ; hind foot, 15. 



c. machetes (Blarina), Merr., N. Am. Faun., No. 10, 1895, p. 26. 

 WARRING SHREW. 



Type locality. Mountains near Ozolotepec, State of Oaxaca, 

 Mexico. Altitude, 10,000 feet. 



Geogr. Distr. State of Oaxaca, Mexico. 



Genl. Char. Similar to B. mexicana, but larger. Inner cusplet of 

 unicuspids not chestnut-tipped; molars slightly varying from those 

 of species named; large upper premolar longer, broader, and more 

 excavated posteriorly, with antero-internal angle and cusp less devel- 

 oped; molars larger and more concave behind. 



Color. Above sooty black, paler beneath. 



Measurements. Total length, 104 ; tail vertebras, 30.5 ; hind foot, 1 5 . 



531. mayensis (Blarina), Meir., Proc. Wash. Acad. Scien., in, 1901, 



P- 559- 

 MAYA SHREW. 



Type locality. Maya ruin, Chichen Itza, Yucatan, Mexico. 



Genl. Char. Similar to B. mexicana, but color different and uni- 

 cuspidate teeth larger and broader. "Molariform teeth large, not 

 excavated anteriorly or posteriorly; first and second unicuspids large 

 and swollen, and with inner tubercle obsolete." 



Color. Above plumbeous, grizzled; beneath plumbeous, washed 

 with ashy brown. 



Measurements. Total length, 102; tail vertebrae, 29; hind foot, 13. 



532. nelsoni (Blarina}, Merr., N. Am. Faun., No. 10, 1895, p. 26. 

 NELSON'S SHREW. 



Type locality. Volcano of Tuxtla, State of Vera Cruz, Mexico. 

 Altitude, 4,800 feet. 



Geogr. Distr. State of Vera Cruz, Mexico. 



Genl. Char. Similar to B. mexicana, with comparative dental 

 differences; inner cusplet of the unicuspids obsolete; upper molari- 

 form teeth without posterior excavation. 



Color. Uniform sooty brown. 



Measurements. Total length, no; tail vertebrae, 31 ; hind foot, 14. 



533. alticola (Blarina}, Merr., N. Am. Faun., No. 10, 1895, p. 27. 

 Mr. POPOCATEPETL SHREW. 



Type locality. Mt. Popocatepetl, State of Mexico. Altitude, 

 11,500 feet. 



