6 4 



CARL H. EIGEXMANN. 



margin of the skull to the front of the first dorsal ray, 16 mm. ; front of 

 dorsal to middle ray of the caudal, 17 mm. First anal ray nearer base of 

 middle caudal ray than the anus. Specimens from about Mammoth Cave 

 42 mm. long, measure as follows : Head 3 to 3^ in length of body ; width 



FIG. I. Side view of the head of a Typhlichthys subterraneus. 



FIG. 2. Dorsal view of the same. 



of head in length of body, 5, i^to i| in its own length ; distance from the 

 base of the skull to the first dorsal, 15 mm. ; front of dorsal to middle ray 

 of caudal, ijy mm - First anal ray about equidistant from the base of 

 the middle caudal ray and the anus. 



The second new species may be described as 



