558 BLARINA. 
Fic. LXXXII. BLARINA PERGRACILIS. OCOTLAN SLENDER SHREW. 
No. 8689 Field Columbian Mus, Coll. 
Color. Above blackish olive brown, beneath pale grayish brown. 
Measurements. Total length, 81; tail vertebre, 20; hind foot, 
ro. Skull: total length, 16; Hensel, 13; mastoid breadth, 7; palatal 
length, 6. 
brevicauda berlandieri (Blarina), Baird, N. Amer. Mamm., 1857. 
p. 53. Merr., N. Am. Faun., No. 10, 1895, p. 20. 
BERLANDIER’S SHREW. 
Type locality. Matamoros, State of Tamaulipas, Mexico. 
Geogr. Distr. State of Tamaulipas, Mexico, north into Texas. 
Genl. Char. Upper first and second molars but slightly concave 
behind. Very similar to B. parva. 
Color. Above ash brown; beneath grayish. 
Measurements. Total length, (average six specimens) 83; tail 
vertebre, 19; hind foot, 12. Skull: greatest length to tip of incisors, 
16.8; greatest breadth, 7.8. 
525. nigrescens (Blarina), Allen, Bull. Am. Mus. Nat. Hist., 1895, 
P- 339. 
micrura, Allen, Bull. Am. Mus. Nat. Hist., 1893, p. 338. {nec 
Thomas. ) 
BLACK SHREW. 
Type locality. San Isidro (San José,) Costa Rica. 
Geogr. Distr. Known only from type locality. 
Genl. Char. Pelage coarse, long, dull; tail about one-third the 
length of the head and body, nearly naked. 
Color. Above dusky plumbeous, in some lights black; lower sur- 
face not appreciably different; feet and tail blackish, nearly naked, 
the annulations of the latter being distinctly visible. 
