DIVERGENCE AND CONVERGENCE IN FISHES. 



65' 



Typhlichthys osborni * Eigenmann, sp. nov. 



November 29 to December 2 a large number of Typhlichthys were ob- 

 tained. Five from Mitchell's cave at Glasgow representing subterrancits 



FIG. 3. Side view of the head of a Typhlichthys csborni. 



FIG. 4. Dorsal view of the same. 



All the figures show the tactile organs of the head and their mode of arrangement. 

 The general outlines and the arrangement of the tactile organs are from camera 

 sketches, the number of tactile organs are from actual counts. The differences in 

 the eye region can be but faintly indicated in the drawings. 



and forty-two from Horse Cave. Both these localities are on the L. & N. R. 

 R., not far from the Mammoth Cave. The specimens from the two locali- 



* To Henry Fairfield Osborn of the American Museum of Natural History in recog- 

 nition of his interest in the zoology of the interior of the United States. 



