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. x 



pp. 589-694. 



P. 883. Note on the genus Hiatida of Lacepede or Tautoga of Mitchiil. 

 By Theodore Gill. 



P. 884. Note on the genus Chonerhinm or Xenopterw. By Theodore 

 Gill. 



P. 885. On the genus Giwthanacanthus 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. vi, 1-508, 84 pis., 8 figs. 



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 Costa 

 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 Noctuidre of boreal 

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

 Smith. 



pp. 33-52, 1 plate. 



P. 891. Contributions toward a monograph of the Noctuidae of boreal 

 America: Revision of the Dicopinse. Ity John B. Smith. 



pp. 53-64. 



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

 America: Revision of Xylomiges and Morrisonia. By John 

 B. Smith. 



pp. 65-86, 1 plate. 



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



pp. 87-113, 5 pis. 



