Part 19

Volcano Mouse; Spanish, RatA cubedn de Los Volcanes

Neotomodon alstoni Merriam, Proc. Biol. Soc. Washington, 12:128, April 30, 1898, type from Nahuatzin, 8,500 ft., MichoacAin.

Range.--Higher mountains of state.

Specimens examined, 22: nos. 52179-52184, 52186, 52193-52196, 52199, 52200, 52204-52212, all from Mount TancA-taro, distributed by localities as follows: 7,800 ft., 5; 7,850 ft., 3; 10,000 ft., 4; 10,200 ft., 5; 10,500 ft., 1; 10,800 ft., 1; 11,000 ft., 2; 11,400 ft., 1.

Remarks.--The taking of specimens on Mount TancA-taro extends the known geographic range of Neotomodon approximately 75 kilometers to the southwestward; the westernmost locality previously known was Nahuatzin, the type locality.

=Nelsonia goldmani= Merriam

Dwarf Wood Rat; Spanish, Rata Montera Minuscula

Nelsonia goldmani Merriam, Proc. Biol. Soc. Washington, 16:80, May 29, 1903, type from Mount TancA-taro, MichoacAin.

Range.--Known only from the type locality.

Remarks.--In the original description three specimens are recorded from the type locality.

=Neotoma latifrons= Merriam

White-throated Wood Rat; Spanish, Rata Montera Frentuda

Neotoma latifrons Merriam, Proc. Biol. Soc. Washington, 9:121, July 2, 1894, type from QuerA(C)ndaro, MichoacAin.

Range.--Known only from the type locality.

=Neotoma ferruginea tenuicauda= Merriam

Ferruginous Wood Rat; Spanish, Rata Ferruginosa

Neotoma tenuicauda Merriam, Proc. Biol. Soc. Washington, 7:169, September 29, 1892, type from north slope of Sierra Nevada de Colima, 12,000 ft., Colima.

Neotoma ferruginea tenuicauda, Howell, N. Amer. Fauna, 31:73, October 19, 1910.

Range.--Probably all but southern tropical part of state.

Specimens examined, 4: nos. 100633 from 9 mi. SE PAitzcuaro, 8,000 ft., and 52177, 51390, 51391, from TancA-taro, the elevation being given as 7,850 ft. on no. 52177.

Remarks.--Our one specimen from 9 miles southeast of PAitzcuaro was caught in a small steel trap set at a meat bait.

=Microtus mexicanus salvus= Hall

Mexican Meadow Mouse; Spanish, Metorito

Microtus mexicanus salvus Hall, Univ. Kansas Publ., Mus. Nat. Hist., 1:426, December 24, 1948, type from Mount TancA-taro, 11,400 ft., MichoacAin.

Range.--Known only from Mount TancA-taro at elevations of 7,800 to 11,400 feet.

Specimens examined, 14: nos. 51412, 51413, 52093, 52095-52099, 52101, 52103-52107, all from Mount TancA-taro, distributed by elevations as follows: 11,400 ft., 8; 11,000 ft., 2; 7,800 ft., 1; no elevation recorded, 3.

=Microtus mexicanus fundatus= Hall

Mexican Meadow Mouse; Spanish, Metorito