162 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
Perognathvis pernix rostratus Osgood. 
1900. Perognathus pernix rostratus Osgood, North Amer* 
fauna, no. 18, p. 51. September 20, 1900. 
Type locality. — Camoa, Rio Mayo, State of Sonora, Mexico. 
Perognathus intermedias Merriam. 
1889. Perognathus interniedius Merriam, North Amer. fauna, 
no. 1, p. 18. October 25, 1889. 
Type locality. — Mud Spring, Mohave County, Arizona. 
Perognathus nelsoni Merriam. 
1894. Perognathus {Chaetodijnis) netsoni Merriam, Proc. 
acad. nat. sci. Phila., p. 266. September 27, 1894. 
Type locality. — Hacienda La Parada, about 25 miles north¬ 
west of the City of San Luis Potosi, State of San Luis 
Potosi, Mexico. 
Perognathus nelsoni canescens (Merriam). 
1894. Perognathus (^Chaetodipus) interrnedius canescens 
Merriam, Proc. acad. nat. sci. Phila., p. 267. September 
27, 1894. 
1900. Perognathus nelsoni canescens Osgood, North Amer. 
fauna, no. 18, p. 54. September 20, 1900. 
Type locality. — Jaral, State of Coahuila, Mexico. 
Perognathus goldmani Osgood. 
1900. Perognathus goldmani Osgood, North Amer. fauna, 
no. 18, p. 54. September 20, 1900. 
Type locality. — Sinaloa, State of Sinaloa, Mexico. 
Perognathus artus Osgood. 
1900. Perognathus artus Osgood, North Amer. fauna, no. 18, 
p. 55. September 20, 1900. 
Type locality. — Batopilas, State of Chihuahua, Mexico. 
Perognathus fallax Merriam. 
1889. Perognathus fallax Merriam, North Amer. fauna, no. 
1, p. 19. October 25, 1889. 
Type locality. — Reche Canyon, three miles southeast of Col- 
ton, San Bernardino County, California. 
Perognathus anthonyi Osgood. 
1900. Perognathus cmthongi Osgood, North Amer. fauna, no. 
18, p. 56. September 20, 1900. 
