PROCEEDINGS 161 



Proc 

 No. 



2854. Restudy of some Burgess shale fossils. By George Evelyn Hutchinson. Art. 11, 



pp. 1-24, 5 figs., 1 pi. Nov. 4, 1930. 



2855. Notes on the types of American two-winged flies of the genus Sarcophaga and 



a few related forms, described by the early authors. By J. M. Aldrich. Art. 

 12, pp. 1-39, 3 pis. Nov. 5, 193o! 



2856. Exploration of ruins in the White Mountain Apache Indian Reservation, Ari- 



zona. By Walter Hough. Art. 13, pp. 1-21, 9 figs., 10 pis. Oct. 25, 1930. 



2857. Notes on ichneumon-flies of the genus Polycyrtus with descriptions of new 



species. By R. A. Cushman. Art. 14, pp. 1-62. Mar. 31, 1931. 



2858. Notes on some acalyptrate flies in the United States National Museum. By John 



R. Malloch. Art. 15, pp. 1-32, 10 figs. Jan. 10, 1931. 



2859. Report on the South American sea stars collected by Waldo L. Schmitt. By 



W. K. Fisher. Art. 16, pp. 1-10, 2 figs., 8 pis. Apr. 7, 1931. 



2860. Mollusks from the Aspen shale (Cretaceous) of southwestern Wyoming. By 



John B. Reeside, Jr., and A. Allen Weymouth. Art. 17, pp. 1-24, 4 pis. Feb 

 26, 1931. 



2861. A new species of amphipod crustacean (Acanthonotozomatidae) from Cali- 



fornia, and notes on Eurystheus tenuicornis. By Clarence R. Shoemaker 

 Art. 18, pp. 1-8, 4 figs. Mar. 11, 1931. 



2862. Notes on the American bats of the genus Tadarida. By H. Harold Shamel 



Art. 19, pp. 1-27. May 6, 1931. 



2863. A new parasitic fly of the genus Chaetophlepsis. By R. T. Webber. Art. 20, 



pp. 1-4. Mar. 26, 1931. 



2864. Description of a new species of amidostomine worm of the genus Epomidios 



toinum from the gizzard of anserine birds. By Rudolf Wetzel. Art. 21 

 pp. 1-10, 2 pis. Mar. 19, 1931. 



2865. Redescription of two species of trematode worms from the MacCallum col- 



lection, with a note on the family Pronocephalidae. By Emraett W. Price 

 Art. 22, pp. 1-10, 2 figs. Mar. 11, 1931. 



2866. New genera and species of nematode worms. By Asa C. Chandler. Art. 23, pp 



1-11, 2 pis. Mar. 11, 1931. 



Volume 79 



Proceedings of the United States National Museum, vol. 79. Pp. i-xvi (title page, 

 advertisement, table of contents, and list of illustrations) ; arts. 1-34 (Proceed- 

 ings papers 2867-2900, paged separately). 1932. 



2867. Three new species of polychaetous annelids from Chesapeake Bay. By Aaron 



L. Treadwell. Art. 1, pp. 1-5, 3 figs. July 21, 1931. 



2868. Revision of the species of beetles of the genus Trirhabda north of Mexico. 



By Doris Holmes Blake. Art. 2, pp. 1-36, 2 pis. July 24, 1931. 



2869. A new species of nematode worm from the sage grouse. By Everett E. Wehr. 



Art. 3, pp. 1-3, 3 figs. June 24, 1931. 



2870. Four new species of trematode worms from the muskrat. Ondatra zibethica, 



with a key to the trematode parasites of the muskrat. By Emmett W. Price. 

 Art. 4, pp. 1-13, 4 figs. July 10, 1931. 

 2S71. Description of a new genus and species of nematode worm occurring in the 

 northwestern belted kingfisher, with a key to the genera of the subfamily 

 Acuariinae. By Everett E. Wehr. Art. 5, pp. 1-4, 5 figs. June 20, 1931. 



2872. Two new species of nematode worms of the genus Osteriaqia from the Vir- 



ginia deer, with a note on Ostertagia lyrata. By G. Dikmans, Art. 6, pp. 

 1-6, 1 fig., 2 pis. July 25, 1931. 



2873. Descriptions of new genera and species of Siamese fishes. By Hugh M. 



Smith. Art. 7, pp. 1-48, 22 figs., 1 pi. Mar. 26, 1931. 



2874. A new shipworm from Venezuela, By Paul Bartsch. Art. 8, pp. 1-3, 1 pi. 



Apr. 7, 1931. 



2875. A new species of troodont dinosaur from the Lance formation of Wyoming. 



By Charles W. Gilmore. Art. 9, pp. 1-6, 5 pis. June 1, 1931. 



