Specimens (2): ♂, 38985, testis 11 × 7 mm., not fat, 43 gm.; ♀, 38984, ova to 4.5 mm., vascular brood patch, 49.0 gm.; Camp 1, July 7.
Fig. 1.—Mesquite-cactus formation on clay dune at margin of the Laguna Madre west of Camp 1. Habitat of Northern Mockingbird, Cardinal, Bob-white, black-tailed jackrabbit, and Great Plains woodrat.
Fig. 2.—Batis-Monanthochloë formation on alkaline flats near the Laguna Madre, with mesquite bordering stabilized dunes in the left background. Salicornia, a classical dominant of salt marshes, is here relatively inconspicuous. Habitat of Nighthawk and Horned Lark.
"Fossilized" burrow of Texas Pocket Gopher in a sandy trough between active dunes. A part of the cast has been broken away to show the general shape of the old burrow. The diameter of the cast is about 3.5 inches.