558 



BLARINA. 



FIG. 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 vertebrae, 20; hind foot, 

 10. 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 

 vertebrae, 19; hind foot, 12. Skull: greatest length to tip of incisors, 

 1 6. 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. (nee 



Thomas.) 

 BLACK SHREW. 



Type locality. San Isidro (San Jose,) 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. 



