Sylvilagus floridanus
Eastern Cottontail
This species occurs throughout Tamaulipas. A female from Soto la Marina, obtained on May 17, was lactating; another from 12 miles northwest of San Carlos, on August 23, carried two embryos that were 15 mm. in crown-rump length.
Sylvilagus floridanus chapmani (J. A. Allen)
1899. Lepus floridanus chapmani J. A. Allen, Bull. Amer. Mus. Nat. Hist., 12:12, March 4, type from Corpus Christi, Nueces Co., Texas.
1904. Sylvilagus (Sylvilagus) floridanus chapmani, Lyon, Smith. Misc. Coll., 45:336, June 15.
Distribution in Tamaulipas.—Northern two-thirds of state.
A male and pregnant female from 12 miles northwest of San Carlos weighed, respectively, 650 and 690 grams.
Records of occurrence.—Specimens examined, 17: San Fernando, 180 ft., 3; 12 mi. NW San Carlos, 1300 ft., 3; La Pesca, 3; Soto la Marina, 500 ft., 6; Ejido Eslabones, 2 mi. S, 10 mi. W Piedra, 1200 ft., 2.
Additional record: Jaumave (Nelson, 1909:178).