1917. Sturnira lilium parvidens Goldman, Proc. Biol. Soc. Washington, 30:116, May 23, type from Papayo, about 25 mi. NW Acapulco, Guerrero.
Distribution in Tamaulipas.—Known presently only from Rancho Pano Ayuctle.
The two specimens from Tamaulipas were reported by de la Torre (1954:114) and in eastern México are the northernmost yet reported of the genus.
Artibeus jamaicensis jamaicensis Leach
Jamaican Fruit-eating Bat
1821. Artibeus Jamaicensis Leach, Trans. Linn. Soc. London, 13:75, type from Jamaica.
Distribution in Tamaulipas.—Tropical region of southern part of state.
The specimens from northwest of El Encino were shot deep (250 yards) in a cave; specimens of Myotis nigricans were obtained in the same cave. A female taken on May 24 carried a single embryo that was 43 mm. in crown-rump length. Six March-taken females reported by de la Torre (1954:114) had one embryo each that varied from 20 to 38 mm. in length.
Artibeus jamaicensis and A. lituratus are the largest bats known from Tamaulipas. In addition to the differences between the two species pointed out by Lukens and Davis (1957:9), I note, in Tamaulipas at least, that the postorbital constriction is narrower in relation to the condylobasal length in lituratus, 24.6 (23.7-26.0) per cent as compared to 27.9 (26.7-29.9) per cent in jamaicensis.
Records of occurrence.—Specimens examined, 19: 10 km. N, 8 km. W El Encino, 400 ft., 10; Aserradero del Paraiso, 19 km. N Chamal (by road), 8 (AMNH); Cueva El Pachón, 5 mi. N Antiguo Morelos, 1 (AMNH).