The San Marcos gambusia lives in clear spring water coming from the headwaters of the San Marcos River. This species is found only in the San Marcos River, Hays County, Texas. The …

The San Marcos gambusia (Gambusia georgei) is a likely extinct species of Gambusia from the family Poeciliidae that was found only in the San Marcos Springs of Central Texas. [5] The fish …

Mar 19, 2022 · The San Marcos gambusia was described as a new species from the upper San Marcos River system in 1969, and was subsequently listed as endangered on July 14, 1980. …

Dec 4, 2023 · In the case of the tiny San Marcos gambusia, University of Texas at Austin ichthyologist Robert Edwards began studying the little fish almost as soon as it was …

Oct 5, 2021 · Texas has lost its native San Marcos gambusia — a freshwater fish listed among 22 fish, birds and other species declared extinct by U.S. Fish and Wildlife last week. But a state …

San Marcos River at Hwy. I-35 bridge, Hays County, Texas (Hubbs and Peden 1969). Maximum size: Adult size 25-40 mm SL (Guillory 1980). Coloration: Dark edges on dorsal and caudal …

Oct 17, 2023 · The San Marcos gambusia, a small fish found only in the San Marcos River, has been formally declared extinct. It was last seen in the wild in 1983.

Oct 5, 2021 · Fully-grown, this species of gambusia was about an inch long. It had lemon yellow median fins and a dark stripe along the upper edge of its dorsal fin. It loved to dine on small …

The San Marcos Gambusia is plain marked with lemon yellow, bright yellowish-orange, or bluish coloring (USFWS 1996). Like other members of the gambusia family, it produces live offspring. …

The San Marcos gambusia (Gambusia georgei) is a vertebrate species that was listed as endangered throughout all of its range on July 14, 1980 (45 FR 47355). Therefore, the DPS …