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se that several tropical mammals range farther northward than previously reported. Funds for financing the field work were made available by a grant from the Kansas University Endowment Association. ACCOUNTS OF SPECIES ~Didelphis mesamericana mesamericana~ Oken Central American Opossum _Did[elphys] mes-americana_ Oken, Lehrbuch d. Naturgesch., pt. 3, vol. 2:1152, 1816. (Type from Northern Mexico.) _Didelphis mes-americana_ Allen, Bull. Amer. Mus. Nat. Hist., 16:256, August 18, 1902. _Specimens examined_, 2 as follows: 36 km. N and 10 km. W Ciudad Victoria, 1 km. E El Barretal, on Rio Purificacion, 1; 12 km. N and 4 km. W Ciudad Victoria, 1. ~Philander opossum pallidus~ (Allen) Four-eyed Opossum _Metachirus fuscogriseus pallidus_ Allen, Bull. Amer. Mus. Nat. Hist., 14:215, July 3, 1901. (Type from Orizaba, Veracruz, Mexico.) _Philander opossum pallidus_ Dalquest, Occ. Papers Mus. Zool., Louisiana State Univ., No. 23:2, July 10, 1950. _Specimens examined_, 3 from 70 km. [by highway] S Ciudad Victoria and 2 km. W El Carrizo. _Remarks._--These three specimens have proportionately longer tails than typical _P. o. pallidus_ from central Veracruz; total length and length of tail of two adult males are 575, 295, and 568, 290 respectively. This marsupial has been previously unrecorded from Tamaulipas or from so northward a locality. The four-eyed opossum evidently ranges northward along the east face of the Sierra Madre Oriental within the humid division of the Upper Tropical Life-zone. These animals, all males, were taken in steel traps baited with the bodies of skinned mice or birds. Sets were made along well-used trails leading from a densely vegetated arroyo into a corn field through openings in a fence of roughly piled logs. The elevation of this locality is approximately 2500 feet. ~Desmodus rotundus murinus~ Wagner Vampire Bat _D[esmodus] murinus_ Wagner, Schreber's Saeugthiere, Suppl., 1:377, 1840. (Type from Mexico.) _Desmodus rotundus murinus_ Osgood, Field Mus. Nat. Hist., publ. 155, zool. ser., 10:63, January 10, 1912. _Specimens examined_, 9 as follows: 12 km. W and 8 km. N Ciudad Victoria, 2500 ft., 3; 70 km. [by highway] S Ciudad Victoria and 6 km. W of the [Pan-American] highway [at El Carrizo], 6. _Remarks._--Vampire bats were taken at two caves.
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