OBSERVATIONS ON TYPHLOMOLGE RATHBUNI. 103 



cries, for permission to keep apparatus and outfit as well as ma- 

 terial collected at the U. S. Fish Hatchery in San Marcos. 



Mr. Frank Johnson for permission to use and abuse his well in 

 every conceivable way and for valuable suggestions and help in 

 catching Typhlomolge out of the well. 



Mr. Mark Riley, Superintendent of U. S. Fish Hatchery in 

 San Marcos for aiding the work in every possible way. 



Dr. W. T. Vaughan, of the U. S. Geol. Survey, and Prof. C. 

 Eigenmann for valuable suggestions as to traveling and local con- 

 ditions in Texas. 



Dr. T. W. Stanton and Mr. L. W. Stephenson, of the U. S. 

 Geol. Survey, for determination of the various rock specimens 

 collected from the caves. 



Dr. H. E. Ortmann for identification of the various species of 

 Crustaceans. 



Dr. L. Stejneger for identification of the salamander Plethodon 

 glntinosiLS. 



Library of the Brooklyn Museum and in particular Miss S. H. 

 Hutchinson, the librarian, for extensive help in obtaining the 

 literature. 



Mr. S. W. Stanfield, teacher in biology at the State Normal 

 School in San Marcos for valuable suggestions. 



BIBLIOGRAPHY. 



Benedict, J. E. 



'16 Preliminary Descriptions of a New Genus and Three New Species of 

 Crustaceans from an Artesian Well at San Marcos, Texas. Proc. U. S. 

 Nat. Mus., xviii, 615. 

 Eigenmann, C. H. 



'09 Cave Vertebrates of America : A Study in Degenerative Evolution. 



Publication No. 104 of Carnegie Institution, Washington. 

 Emmerson, E. T. 



'05 General Anatomy of Typhlomolge rathbuni. Proc. Soc. Nat. Hist., Bos- 

 ton, xxxii, 43. 

 Hill, R. T., and Vaughan, T. W. 



'13 Geology of the Edwards Plateau and Rio Grande plain adjacent to 

 Austin and San Antonio, Texas. With reference to the occurrence of 

 underground water. i8th Annual Report, U. S. Geol. Survey, Part II., 



193- 

 Normann, W. W. 



'oo Remarks on the San Marcos Salamander, Typhlomolge rathbuni, Stejne- 

 ger. Amer. Nat., xxxiv., 179. 



