88 BULLETIN 51, UNITED STATES NATIONAL MUSEUM. 



P. 882. A critical review of the characters and variations of the 

 snakes of North America. By E. D. Cope. 



pp. 589-694. 



P. 883. Note on the genus Hiatvla of Lac6p^de or Tautoga of Mitchill. 

 By Theodore Gill. 



p. 695. 



P. 884. Note on the genus Clwnerhinus or Xenopterus. By Theodore 

 Gill. 



pp. 697-699. 



P. 885. On the genus Onathanacanthiis of Bleeker. By Theodore 

 Gill. 



pp. 701-704, 1 fig. 



P. 886. Notes on the Tetraodontoidea. By Theodore Gill. 



pp. 705-720, 1 plate.. 



VOLUME XV, CONTAINING PAPERS 887-918. 



Smithsonian Institution. | United States National Museum. | — — | 

 Proceedings | of the | United States National Museum. | | 



Volume XV. | 1892. | — — | Published under the direction of the 



Smithsonian Institution. | | Washington: | Government 



Printing Office. | 1893. 



8vo., pp. yi, 1-508, 84 pis., 8 flgs. 



P. 887. Preliminary descriptions of thirty -seven new species of hermit 

 crabs of the genus Eupagurus in the U. S. National Museum. 

 By James E. Benedict. 



pp. 1-26. 



P. 888. Description of two apparently new fly-catchers from Cosia 

 Rica. By George K. Cherrie. 



pp. 27-28. 



P. 889. A maid of Wolpai. By R. W. Shufeldt. 



pp. 29-31, 1 plate. 



P. 890. Contributions toward a monograph of the Noctuidse of boreal 

 America: Revision of the genus Cvxiullia. By John B. 

 Smith. 



pp. 33-52, 1 plate. 



P. 891. Contributions toward a monograph of the Noctuid^ of boreal 

 America: Revision of the Dicopinae. By John B. Smith. 



pp. 53-64. 



P. 892. Contributions toward a monograph of the Noctuidse of boreal 

 America: Revision of Xylomiges and Morrisonla. By John 

 B. Smith. 



pp. 05-86, 1 plate. 



P. 893. Notes on avian entozoa. By Edwin Linton. 



pp. 87-113, 5 pis. 



