Part 3

=======+======+======+=====+======+=====+=====+====+=====+====+==== A | B | C | D | E | F | G | H | I | J | K -------+------+------+-----+------+-----+-----+----+-----+----+---- P. aztecus Mirador, Veracruz -------+------+------+-----+------+-----+-----+----+-----+----+---- 7 mean| 229 | 113 | 24.5| ... | 30.1| 15.3| 4.7| 12.5| 6.4| 4.8 max.| 238 | 121 | 26 | ... | 30.9| 15.8| 5.0| 13.5| 6.8| 5.0 min.| 215 | 107 | 24 | ... | 29.2| 14.9| 4.6| 11.2| 5.7| 4.7 -------+------+------+-----+------+-----+-----+----+-----+----+---- P. boylii beatae Las Vigas to 3 km. E thereof, Veracruz -------+------+------+-----+------+-----+-----+----+-----+----+---- 14 mean| 219.3| 116.7| 23.8| 113.7| 28.9| 14.4| 4.5| 11.5| 6.3| 4.5 max.| 235 | 130 | 25 | 128.9| 29.8| 15.1| 4.7| 12.5| 6.8| 4.8 min.| 204 | 107 | 22 | 100.0| 27.9| 13.8| 4.2| 10.7| 5.9| 4.4 -------+------+------+-----+------+-----+-----+----+-----+----+---- 6 km. SSE Altotonga, Veracruz -------+------+------+-----+------+-----+-----+----+-----+----+---- 5 mean| 224.4| 116.1| 24.1| 109.4| 29.1| 14.5| 4.5| 11.6| 6.4| 4.5 max.| 241 | 126 | 25 | 114.8| 30.1| 15.2| 4.6| 12.0| 6.7| 4.7 min.| 221 | 110 | 24 | 100.0| 28.6| 14.0| 4.4| 11.2| 6.0| 4.3 -------+------+------+-----+------+-----+-----+----+-----+----+---- P. boylii levipes 3 km. SW San Isidro, San Luis Potosi -------+------+------+-----+------+-----+-----+----+-----+----+---- 11 mean| 205.6| 99.5| 22.4| 93.8| 28.5| 14.2| 4.4| 11.3| 5.9| 4.4 max.| 219 | 114 | 23 | 108.6| 30.5| 14.5| 4.6| 12.2| 6.4| 4.6 min.| 193 | 90 | 21 | 87.4| 27.2| 13.8| 4.2| 10.8| 5.6| 4.1 -------+------+------+-----+------+-----+-----+----+-----+----+---- 6 km. NE Cd. del Maiz, San Luis Potosi -------+------+------+-----+------+-----+-----+----+-----+----+---- 9 mean| 198.7| 96 | 22 | 93.4| 28.1| 14.0| 4.4| 11.2| 6.0| 4.5 max.| 205 | 105 | 22 | 105.0| 28.7| 14.2| 4.6| 11.7| 6.4| 4.6 min.| 187 | 90 | 22 | 85.7| 27.3| 13.4| 4.3| 10.6| 5.7| 4.3 -------+------+------+-----+------+-----+-----+----+-----+----+---- 11 mi. W, 8 mi. S Piedra, Tamaulipas -------+------+------+-----+------+-----+-----+----+-----+----+---- 5 mean| 201.8| 101.8| 22.6| 101.8| 28.5| 14.0| 4.4| 11.3| 6.1| 4.3 max.| 214 | 110 | 23 | 109.3| 29.0| 14.1| 4.6| 11.5| 6.2| 4.7 min.| 193 | 94 | 22 | 94.9| 28.2| 13.9| 4.2| 11.0| 6.0| 4.1 -------+------+------+-----+------+-----+-----+----+-----+----+---- P. boylii ambiguus La Vegonia, Tamaulipas -------+------+------+-----+------+-----+-----+----+-----+----+---- 7 mean| 199.1| 101.6| 21.3| 104.3| 26.9| 13.4| 4.3| 10.5| 5.6| 4.3 max.| 213 | 109 | 22.4| 108.9| 28.6| 13.7| 4.5| 11.8| 5.9| 4.7 min.| 188 | 97 | 20 | 98.0| 26.4| 13.2| 4.2| 9.5| 5.3| 4.1 -------+------+------+-----+------+-----+-----+----+-----+----+---- Monterrey, Nuevo Leon -------+------+------+-----+------+-----+-----+----+-----+----+---- 16 mean| 199.7| 103.2| 21.3| 106.9| 27.6| 13.9| 4.4| 10.7| 5.6| 4.2 max.| 216 | 114 | 22 | 125.6| 28.2| 14.9| 4.6| 11.5| 5.8| 4.5 min.| 176 | 92 | 19 | 88.0| 26.8| 13.2| 4.1| 10.2| 5.0| 4.0 -------+------+------+-----+------+-----+-----+----+-----+----+----

Specimens examined.--Total 64 as follows: NUEVO LEON (USNM): Monterrey, 37; Cerro de la Silla, 18. COAHUILA: 12 km. E San Antonio de las Alazanas, 9000 ft., 2. TAMAULIPAS: La Vegonia, Sierra San Carlos, 7 (UMMZ).

I am grateful to the following persons for the loan of specimens: G. B. Corbet, British Museum, Natural History (BM); David H. Johnson, United States National Museum (USNM); George H. Lowery, Jr., Louisiana State University (LSU); Philip Hershkovitz, Chicago Natural History Museum (CM); William B. Davis, Texas Agricultural and Mechanical College (TAM); W. H. Burt and Emmet T. Hooper, University of Michigan Museum of Zoology (UMMZ). Specimens lacking designation as to collection are housed in the Museum of Natural History of The University of Kansas. I am indebted to Professor E. Raymond Hall and Mr. J. Knox Jones, Jr. for the use of these specimens and for other assistance. It is appropriate to record also that the findings reported above are an outgrowth of related work done as a Research Assistant under Grant No. 56 G 103 from the National Science Foundation.

LITERATURE CITED

DALQUEST, W. W.

1953. Mammals of the Mexican state of San Luis Potosi. Louisiana State Univ. Biol. Sci. Ser., 1:1-233, December 28.

HALL, E. R., and KELSON, K. R.

1959. The mammals of North America. The Ronald Press, New York, vol. 2:ix + 547-1083 + 79, illustrated, March 31.

OSGOOD, W. H.

1909. Revision of the mice of the American genus Peromyscus. N. Amer. Fauna, 28:1-285, 8 pls., April 17.

RIDGWAY, R.

1912. Color standards and color nomenclature. Washington, D. C., iv + 43 pp., 53 pls.

SAUSSURE, M. H. de

1860. Note sur quelques mammiferes du Mexique. Revue et Mag. Zool., Paris, ser. 2, 12:97-110, March.

THOMAS, O.

1903. On three new forms of Peromyscus obtained by Dr. Hans Gadow, F. R. S., and Mrs. Gadow in Mexico. Ann. Mag. Nat. Hist., ser. 7, 11:484-487, May.

Transmitted June 30, 1961.

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