Notes on habitats, systematic characters and life histories of Texas salt water cyprinodonts.

Sixty stations were set up between the Rio Grande and the Sabine River, covering the habitats of the salt water Cyprinodontes along the bay shores, sloughs and tidal ponds. These were visited eighty-four times, about one and a half rounds of all stations, between September 1950 and March 1951. Drags were made at each station with a fifty foot minnow seine with mesh one quarter of an inch stretched. Water temperatures were taken and salinities were determined later by hydrometer. Some samples were checked by titration. All cyprinodonts captured were counted and measured. Sexual condition and coloration were noted and some stomach contents were noted. External meristic counts were made.