NO. 1572. A NEW KILLIFISH— JORDAN AND RICHARDSON. 321 



The water from which these specimens were taken is thus described 

 by Mr. Brown : 



The surface cif the water — er, rather, luueh of it — was covered with a tough thick 

 growth of green and sulphur colored algae. The temperature was taken in water 

 from which the algfe had been removed . The register was 128°. 



The temperature was taken by Mr. Godfrey Sykes, an engineer well known through 

 this section of country, in the presence of myself and Dr. D.T. MacDougal, director 

 of the Carnegie Bota.nical Laboratory at this place. It was with a laboratory instru- 

 ment that the temperature was taken. With the exception of an open strip of water 

 about 2 or 3 feet wide, the surface of the flow from the spring was covered with a thick 

 growth of algge. A portion of the algae was removed, and the temperature taken in the 

 hole so made. The temperature was undoubtedly hotter ther(> than it was on the 

 open edge of the water, but the fish darted in and out under the algae and because of 

 doing so were not easily caught. The water certainly was as hot under the unbroken 

 algae as it was where the thermometer was placed. At this particluar place the flow 

 was about 10 or 12 feet wide, and was about 20 feet from the point where the water 

 broke out of the ground. Lower down the escaping water widened out and ran thinner 

 over the surface. A bottle of the water was brought away and an analysis was made 

 of it by Prof. R. E. Forbes, chemist at Territorial University. It contained 2^ per 

 cent of soluble salts, of which salts 2 per cent were common salt and \ per cent calcium 

 chloride. It also contained a trace of lithium. I would like to add here that the 

 water teemed with insect life. A second spring, of about an equal volume of water 

 and not more than 20 feet away anct running parallel with the first, contained no fish. 

 The fish were captured and placed in a can with a closed top about 10 a. m. We were 

 then on the move and my formaldehyde was in a large tank, and as I did not care to 

 put the little fellows in it I carried them for nearly two days in the can in which they 

 were first placed. It was in February and the night was cold, but when I examined 

 them the next morning they appeared to be as lively as ever. The following afternoon 

 they were still living, but were not so lively as in the morning. I then placed them in 

 formaldehyde. They had lived in about a quart of water from their native sj^ring. 



Proc. N. M. vol. xxxiii— 07 21 



