IOO EDUARD UHLENHUTH. 



the course of two months, as was the case in Ezell's Cave, 

 Beaver Cave and Johnson's Well, a steady and skillful worker 

 could collect from 18 such places 180 specimens in a year, a num- 

 ber sufficiently large to start experimental work on the species 

 and to keep a sufficient number for breeding stock. For this 

 reason an attempt will be made to mention briefly a number of 

 other places where Typhlomolge may possibly be found. 



There are two caves on the ranch of Mr. Bender at Spring 

 Branch, 40 miles above San Marcos and about 1,100 feet above 

 sea level. One is a narrow channel through which the head water 

 of Spring Branch Creek passes out. The channel is filled almost 

 to the top with water but it is possible to penetrate it to a depth 

 of 350 feet. Since the water is flowing quite rapidly, it is not 

 likely to contain Typhlomolge, but a more thorough search might 

 be conducted. The other cave represents a narrow crack in the 

 strata containing water at a depth of 45 feet. It is only a small 

 pool, which, however, is part of a larger body of water covered 

 by overlapping ledges. The temperature of the water is 20.5 C. 

 Besides frogs, some other animals inhabit this pool. They could 

 not, however, be identified, as upon our approach they imme- 

 diately dived underneath the ledge. 



More important still is the water on Mr. Bremer's ranch, at 

 the water hole of the Cypress Fork in Hays County, a tributary 

 branch of the Blanco River, about 1,000 feet above sea level. 

 The water hole (Jacob's well) itself is filled with blue water 

 which has a temperature of 22.5 C. On account of the large 

 black basses inhabiting the hole one would not expect to find 

 Typhlomolge there. But further up on one of the slopes of the 

 dry valley is located the entrance to a cave in which the water 

 (probably of Jacob's well) could be reached. We penetrated to 

 a place where a number of small holes perforate the bottom of 

 the cave; pebbles thrown into the holes evoked the sound of 

 rather deep water. By dislocating a large rock, it would be pos- 

 sible to make one of the holes large enough to gain access to the 

 water. 



It might be valuable to mention a few places in which, accord- 

 ing to Mr. S. A. Stanfield, Typhlomolge have been seen : 

 Burnet Cave, Kendall County, near Burnet. 



